Write the point-slope form of a line that has slope −7 and passes through the point (4, 8)

Answers

Answer 1

Answer:

y = -7x + 36

Step-by-step explanation:

Point-slope form: y - y1 = m(x - x1)

y1 = y-value of a point on a linem = slopex1 = x-value of a point on a line

Substitue 8 for y1, and 4 for x1, and -7 for m:

y - y1 = m(x - x1)

y - 8 = -7(x - 4)

Solve:

y - 8 = -7(x - 4) <== distribute -7

y - 8 = -7x + 28 <== add 8 to both sides

  + 8         + 8

y = -7x + 36

Therefore, the point-slope of the line is y = -7x + 36

Check your answer using (4, 8):

y = -7x + 36

8 = -7(4) + 36

8 = -28 + 36

8 = 8

This statement is correct

Hope this helps!

Write The Point-slope Form Of A Line That Has Slope 7 And Passes Through The Point (4, 8)

Related Questions

can someone help me solve this logarithm function

Answers

Answer:

[tex]\boxed{\sf{x=\dfrac{25}{2}=12.5}}[/tex]

Step-by-step explanation:

Solve the logarithm function.

Put the logarithm function on one side of the equation and x on the other.

log x + log8=2

[tex]\sf{\log _{10}(x)+\log _{10}(8)=2}[/tex]

First, subtract by log₁₀(8) from both sides.

[tex]\sf{\log _{10}(x)+\log _{10}(8)-\log _{10}(8)=2-\log _{10}(8)}[/tex]

Solve.

[tex]\sf{\log _{10}(x)=2-\log _{10}(8)}[/tex]

[tex]\sf{\log _{10}(x)=2-\log _{10}(8)=\boxed{\sf{x=\dfrac{25}{2} }}[/tex]

Therefore, the correct answer is x=25/2=12.5.

I hope this helps you! Let me know if my answer is wrong or not.

Write the expression.

Answers

Answer: 4 (4x + 7)

Step-by-step explanation:

4 ( 4x + 7)

4 is the greatest number divisble by both 16 and 28 so 4 is factored out of the equation

Find the rule and the graph of the function whose graph can be obtained by performing the translation 4 units right and 2
units up on the parent function f(x)=x|
f(x) = 5x + 4 + 2
c. f(x) = x - 71 +2
a.
+
8
2
& 6t 22
2
4
6
8
2
4
1 T9
99
do
b. fx)= x - 4 + 2
d. None of these
6

Answers

Answer:y=x^2 translated 3 to the right gives

y=(x-3)^2,   the vertex shifts from (0,0) to (3,0)

translate it 4 up by adding 4

y=(x-3)^2 + 4, this shifts the vertex up to (3,4)

f(x) = (x-3)^2 + 4   or call it

g(x) = (x-3)^2 + 4  if you want to distinguish it from the original f(x) function

Step-by-step explanation:In this question we have been given a function f(x) = |x|

When we perform a translation of 4 units right then the translated form of the function becomes f(x) = |x - 4|

And when we we translate the function up by 2 units then the transformed form is f(x) = |x - 4| + 2

Therefore the given graph in option B is the correct option.

PLEASE HELP PLEASE HELP

Answers

Answer:

The answer should be 15, since each week the number goes up by 15.

I see a pattern here! Let me show you - multiply 15 by the week number (1, 2, 3, 4, ...), and you have y.

For example, 15 x 3 (for week 3) is 45, as shown by the y value.

So all we must do is multiply 15 by 5, and voila! We'll have our answer. Which, by the way, is 75.

I hope this answers your question!

-Toremi

Find sin(2x), cos(2x), and tan(2x) from the given information.
sin(x) = [tex]-\frac{3}{5}[/tex] for [tex]\frac{3\pi }{2}[/tex] < x < 2

Answers

I assume 3π/2 < x < 2π, so that x is in the 4th quadrant. For angles x terminating in Q4, we have sin(x) < 0 and cos(x) > 0, so tan(x) = sin(x)/cos(x) < 0.

This means that, using the Pythagorean identity,

cos(x) = + √(1 - sin²(x)) = 4/5

tan(x) = (-3/5) / (4/5) = -3/4

Recall the double angle identities:

sin(2x) = 2 sin(x) cos(x) = 2 (-3/5) (4/5) = -24/25

cos(2x) = 2 cos²(x) - 1 = 2 (4/5)² - 1 = 7/25

tan(2x) = 2 tan(x) / (1 - tan²(x)) = 2 (-3/4) / (1 - (-3/4)²) = -24/7

write the ratio as a fraction in simplest form

Answers

14/27. I have linked my working our down below make sure to have a look at it for a better understanding.

The function f(x)=(2)(1.0)+x(0.5)2+x models the concentration of pineapple when 2 gallons of pineapple juice are added to x gallons of another juice. Find the concentration of pineapple when 2 gallons of pineapple juice are added to 3 gallons of the other juice. Give the answer as a percent but do not include the percent sign (%).

Answers

The concentration of pineapple when 2 gallons of pineapple juice are added to 3 gallons of the other juice is 5.75

Functions and values

Given the functions that model the concentration of pineapple when 2 gallons of pineapple juice are added to x gallons of another juice as:

f(x)=(2)(1.0)+x(0.5)²+x

If the concentration of pineapple when 2 gallons of pineapple juice are added to 3 gallons of the other juice, then;

f(3) = (2)(1.0)+3(0.5)²+3

f(3) = 2.0 + 3.75
f(3) = 5.75

Hence the concentration of pineapple when 2 gallons of pineapple juice are added to 3 gallons of the other juice is 5.75

Learn more on functions here: https://brainly.com/question/2833285

Rosalinda has a circular serving platter in the middle of her circular table.
The radius of the platter is 15 inches less than the radius of the table
The diameter of the table is 4 feet. What is the difference between the
area of the table and the area of the platter? Use 3.14 for 17, and write your
answer in decimal form. 7.G.4

Answers

diameter=4ft=12(4)=48in

Radius of table=48/2=24inRadius of platter=24-15=9in

So

Area of table:-

π(24)^2576πin²

Area of platter:-

9²π81π in²

Difference:-

576π-81π495π1554.3in²

Answer:

1554.3 in²

Step-by-step explanation:

Given information:

The radius of the platter is 15 inches less than the radius of the tableThe diameter of the table is 4 feetπ = 3.14

1 foot = 12 inches

⇒ 4 ft = 4 × 12 = 48 in

Radius = ¹/₂ diameter

Radius of table = ¹/₂ × 48 in = 24 in

Radius of platter = 24 in - 15 in = 9 in

Area of a circle = πr²

Area of table = 3.14 × 24² = 1808.64 in²

Area of platter = 3.14 × 9² = 254.34 in²

Difference = area of table - area of platter

                  = 1808.64 - 254.34

                  = 1554.3 in²

Mai and her sister are planting a garden.They made 2 plant beds.one was 4 feet by 3 feet and the other 5 feet by 5 feet.they want to outline the beds with bricks that are 1foot long.How many bricks will they need to outline both beds?

Answers

Answer:

27 bricks

Step-by-step explanation:

find the perimeter of the first one, 4 x 3 = 12. Then the perimeter of the second one, 5 x 5 = 25. Therefore 12 + 15 = 27. Meaning you need 27 bricks

Using the slope​ formula, find the slope of the line through the given points.
12,0 and 2,-5

Answers

Answer:

[tex]\textsf{A.} \quad \textsf{The slope of the line is }\boxed{\dfrac12}[/tex]

Step-by-step explanation:

[tex]\textsf{let}\:(x_1,y_1)=(12,0)[/tex]

[tex]\textsf{let}\:(x_2,y_2)=(2,-5)[/tex]

[tex]\textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{-5-0}{2-12}=\dfrac12[/tex]

[tex]\textsf{The slope of the line is }\boxed{\dfrac12}[/tex]

ALGEBRA 2:

"As you may know, Ms. Gran is our hottest movie star of the century. This agency considers it our good fortune to have her as one of our clients. Since she is in such big demand the movie studio of ILM will do anything to get her under contract. Because of this, they have sent over three different contracts for her. Since math was your favorite subject in school, I am asking that you analyze the three contracts to help Ms. Gran make the best financial decision. When you have completed your analysis, I need you to send a report to Ms. Gran explaining what you think is in her best interest to sign."

Contract A:

$20 for a 1 day contract
$40 for a 2 day contract
$80 for a 3 day contract, etc.

Contract B:

$0.02 for a one day contract
$0.06 for a two day contract
$0.18 for a three day contract, etc.

Contract C:

$100,000 for a 1 day contract
$200,000 for a 2 day contract
$300,000 for a 3 day contract, etc

Answers

Step-by-step explanation:

it is 300,000 for a 3 day contract

Veronica wants to convert 108 inches to feet. What does she need to do?

Answers

Answer:

Divide 108 by 12 since there are 12 inches in a foot.

108 ÷ 12 = 9

Veronica needs to divide 108 inches by 12 to get 9 feet.

To convert inches to feet, Veronica needs to divide the number of inches by 12, as there are 12 inches in a foot.

Given that Veronica wants to convert 108 inches to feet, she should perform the following calculation:

108 inches ÷ 12

= 9 feet

Therefore, Veronica needs to divide 108 inches by 12 to get 9 feet.

To learn more on Conversion factor click:

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HELP ME OUT PLS!!!!

The radius of a sphere is 7 cm. What is the sphere's volume? Round to the nearest tenth, and use 3.14 for pi.

O 723,2 cm

O 1868.2 cm

O 1436,0 cm

O 2052,5 cm​

Answers

Option c (1436.0 cm³)

Explanation :

We know,

[tex]{ \longrightarrow{\qquad \pmb {\sf Volume_{(Sphere)} = \dfrac{4}{3} \pi {r}^{3} }}}[/tex]

Here,

The radius of the sphere is 7 cm.

We will take the value of π as 3.14

Substituting the values in the formula :

[tex]{ \longrightarrow {\qquad {\sf Volume_{(Sphere)} = \dfrac{4}{3} \times3.14 \times {\bigg(7 \bigg)}^{3} }}}[/tex]

[tex]{ \longrightarrow {\qquad {\sf Volume_{(Sphere)} = \dfrac{4}{3} \times 3.14 \times 343 }}}[/tex]

[tex]{ \longrightarrow {\qquad {\sf Volume_{(Sphere)} = \dfrac{4 \times 3.14 \times 343}{3} }}}[/tex]

[tex]{ \longrightarrow {\qquad {\sf Volume_{(Sphere)} = \dfrac{4308.08}{3}}}}[/tex]

[tex]{ \longrightarrow{\qquad \pmb {\sf Volume_{(Sphere)} = 1436.02 }}}[/tex]

Therefore,

The volume of the sphere is 1436.0 cm³

A
The bases are the same size and shape and perpendicular to each
other.
B
The bases are a different size and shape and parallel to each other.
с
The bases are a different size and shape and perpendicular to each
other.
D
The bases are the same size and shape and parallel to each other.

Answers

B? Cause the base is not the same and it's a parallelogram

Please help i am begging

Answers

x is equal to 3 ..

Step-by-step explanation:

hope this helps

Each month, Edward budgets $1860 for fixed expenses, $860 for living expenses
and $250 for annual expenses. His annual net income is $32,508.
Which statement best describes his monthly budget?

Answers

Answer:

His annual net income.

Step-by-step explanation:

Hope it helps.

I NEED HELP ASAP PLEASE LOOK AT THE PICTURE

Answers

Answer:

  385.6 m²

Step-by-step explanation:

The surface area of a prism is the sum of the surface areas of each of the faces. A triangular prism has two triangular faces and three rectangular faces. The areas of the rectangular faces will have a total equal to the perimeter of the triangle times the height of the prism.

__

  Area = 2×triangle area + lateral area

  = 2(1/2)(bh) +PH

  = (16 m)(5.6 m) + (6 +15 +16 m)(8 m)

  = 89.6 m² +296 m² = 385.6 m²

The surface area of the triangular prism is 385.6 square meters.

_____

Additional comment

In the above formula, we have used ...

b = triangle base (16 m)h = triangle height (5.6 m)P = triangle perimeter (6+15+16) mH = prism height (8 m)

GEOMETRY: VOLUME & SURFACE AREA!! HELP PLEASE WITH ANY ONE OF THEM!!

Answers

Answer:

1) 728

2) 274.89

Step-by-step explanation:

Find the volume and surface formulas for each shape attached.

I'll do a couple for you. For rest just use the formulas and input the values and solve.

1) It is a pyramid.

V  = 1/3 * b * h, where b is the area of base, which is a rectangle so,

b = l * w

so,

V = 1/3 * l * w * h

V = 1/3 * 8 * 21 * 13

V = 1/3 * 2184

V = 2184 / 3

V = 728

2) It is a cylinder

[tex]V = \pi *r^2*h[/tex]

V = π * 5^2 * 3.5

V = π * 25 * 3.5

V = 87.5 π

V = 274.89

The perimeter of a triangle is 7 m. The longest side is twice the length of the shortest side. The sum of the
lengths of the shortest side and the middle side is 1 m more than the length of the longest side. Find the
lengths of the sides.

Answers

Answer:

See below in bold.

Step-by-step explanation:

Let the length of the shortest side be x, then the longest side = 2x.

Also  x + y = 2x  + 1   where y = length of the middle side,

Simplifying:

2x - x - y = -1

x - y = -1        (A)

Also as the perimeter = 7:

x + 2x + y = 7

3x + y = 7       (B)

Adding (A) and (B):

4x + 0 = 6

x = 6/4 = 1.5

Plug x = 1.5 into equation B:

3(1.5) + y = 7

y = 7 - 4.5 = 2.5.

Answer:

So the shortest side = 1.5, middle = 2.5 and longest = 2*1.5 = 3.

Circumference of the circle

Answers

Answer:

37 5/7

Step-by-step explanation:

use formular it will be 2pie -22/7 ×radius

since we have been given only radius it will be

2×22/7×6=37 5/7

[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]

Let's find the circumference of given circle ~

Circumference :

[tex] \qquad \tt  \dashrightarrow \: 2\pi{r}^{} [/tex]

where, r = radius

Now, let's calculate it ~

[tex] \qquad \tt  \dashrightarrow \: c = 2×\pi{}^{}×6 [/tex]

[tex] \qquad \tt  \dashrightarrow \: c = 12\pi\: \: m[/tex]

That's the answer I terms of π, but we can also plug in the approximate value of pi as 3.14

[tex] \qquad \tt  \dashrightarrow \: c = 12 \times 3.14{}^{} [/tex]

[tex] \qquad \tt  \dashrightarrow \: c = 37.68\: \: m[/tex]

[tex] \qquad \tt  \dashrightarrow \: c \approx 37.7\: \: m[/tex]

Matt buys 9 cookies, and of them are chocolate chip. How many chocolate chip cookies did he buy? A .3 cookies B. 6 cookies C.8 cookies D. 11 cookies​

Answers

Answer:

B. 6 cookies

Step-by-step explanation:

Given :

9 cookies2/3 of them are chocolate chip

Number of chocolate chip

Total x fraction of chocolate chip9 x 2/33 x 26 cookies

A reciangular pyramid is sliced
horizontally, parallel to its base.
Which figure could represent the
cross section of the pyramid?
A rectangle
Pl triangle
C. cirde
D. hexagon.

Answers

D.hexagon because when it’s parallel to the base it represents a hexagon

Si un átomo tiene un número atómico de 18 y 22 neutrones, ¿cuál es su masa atómica?


DOY CORONA

Answers

su masa atómica es de 4 creo

Please Helpp!!!! Pythagorean theorem

Answers

Answer:

12.6 = c

Step-by-step explanation:

The Pythagorean therom is a^2 + b^2 = c^2

We already know 2 varibles (12 and 4) so we can just plug them in.

12^2 + 4^2 = c^2

144 + 16 = c^2

160 = c^2

[tex]\sqrt{160}[/tex] = [tex]\sqrt{c^2}[/tex]

12.6 = c

Hope this helps :)


On a coordinate plane the graph of a line passes
through the origin and the point (9,12) What is
the equation of the line?

Answers

Answer:

y = (4/3)x

Step-by-step explanation:

Two points on the line are the origen (0, 0) and the given (9, 12).

Starting at the origin and moving to (9,  12), we see the change in x being 9 and that in y being 12.  Thus, the slope of the line through these two points is m = rise/run = 12/9 = 4/3.

Thus the equation of the line in slope-intercept form is y = (4/3)x + 0, or

just y = (4/3)x

I am sort of confused with this question. Could I get help here? I appreciate it! Thank you!

Answers

Answer:

  y = 1.36x

Step-by-step explanation:

There will be no touchdown throws if no games are played. The y-intercept must be zero. That is, the number of touchdown throws is considered to be proportional to the number of games, with the constant of proportionality being 1.36:

  y = 1.36x

On a coordinate plane, DEF has vertices D(1,2), E(7,2)and F(1,9). What is the distance between point E and F?

Answers

Step-by-step explanation:

Using distance formula,

Let the distance between point E and F = ef,

[tex]ef = \sqrt{{(7 - 1)}^{2} + {(2 - 9)}^{2} } \\ ef = \sqrt{85} \\ = 9.219544457[/tex]

Given f() = -4x + 3, find f(-3)

Answers

Answer:

The answer is 15

Step-by-step explanation:

f(x) = -4x + 3, f(-3)

f(-3) = -4x + 3

f(-3) = -4(-3) + 3

f(-3) = 12 + 3

f(-3) = 15

Thus, The answer is 15

Answer:

f(-3)=-4(-3)+3

=12+3=15

Step-by-step explanation:replace x with -3

(d) (1 + cos a) (1 - cos a) /(1 + sin a) (1 - sin a)= tan2 a​

Answers

[tex] \frac{(1 - \cos(a))(1 + \cos(a)) }{(1 - \sin(a) )(1 + \sin(a)) } = \\ [/tex]

[tex] \frac{1 - {cos}^{2}(a) }{1 - {sin}^{2}(a) } = \\ [/tex]

[tex] \frac{ {sin}^{2}(a) }{ {cos}^{2}(a) } = \\ [/tex]

[tex] {tan}^{2} (a)[/tex]

What are the missing numbers for this ratio table

Answers

Answer:

y = 8x = 9

Step-by-step explanation:

The ratios of the numbers shown in the table are all ...

  y/x = 16/4 = 20/5 = 4

Then the missing y-value is ...

  y = 4x

  y = 4(2) = 8

__

And the missing x-value is ...

  36 = 4x

  36/4 = x = 9

_____

Additional comment

The x- and y-values in a "ratio table" are proportional to each other. That means the y corresponding to half an x-value will be half the y-value. In other words, the y for x=2 will be half the y for x=4, or 16/2 = 8.

Also, the values add. We notice that y=36 is the sum of y=16 and y=20. This means the corresponding x-value for y=36 will be the sum of x=4 and x=5, or x = 4+5 = 9.

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