Which equation represents the line that passes through (2, -1) and is
perpendicular to the graph of y=-2x +1. (Please show all your work)

Answers

Answer 1

Answer:

y=(1/2)x-2

Step-by-step explanation:

Remember y=mx+b equation.

If is perpendicular to y=-2x+1 that has the slope -2, then the slope is negative reciprocal so is 1/2

Use the (x-x1)m= (y-y1) equation and the given point (2, -1),

so (x-2)1/2=(y+1); x-2=2y+2; 2y=x-2-2; 2y=x-4; y=(1/2)x-2


Related Questions

Simplify the expression -7+(-3)-(-5)


I NEED HELP ASAP​

Answers

Answer:

It should be -5

Step-by-step explanation:

A house costs $18,000, which is 9/10 the cost of a car. A motorcycle costs 1/5 the cost of the car, or 4/5 the cost of 100 cards. How much is the cost of 30 cards?
PLZ PLZ PLZ PLZ PLZ HELP!!!!!!!!!!!!!

Answers

$6750
The ratio of the cards is 4:5, or 18000:22500
22500/100 is 225
225 times 30 is 6750

In the right ∆ABC, BL is an angle bisector. If LB = 1.2 in and LC = 0.6 in. Find:

- The distance from L to AB.

- m∠ABC

Answers

Answer:

Distance of L from AB = 0.6 in.

m∠ABC = 60°

Step-by-step explanation:

Given:

LB = 1.2 in

LC = 0.6 in

We have to find the distance of point L to AB or length of LD.

From right triangle ΔBCL,

Sin(∠LBC) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

                 = [tex]\frac{LC}{LB}[/tex]

                 = [tex]\frac{0.6}{1.2}[/tex]

                 = [tex]\frac{1}{2}[/tex]

m∠LBC = 30° [Since ∠LBC is an acute angle]

Since, ∠LBC ≅ ∠LBA

m∠LBA = 30°

Now from right triangle ΔLDC,

sin(∠LBA) = [tex]\frac{LD}{BL}[/tex]

sin(30)° = [tex]\frac{LD}{1.2}[/tex]

[tex]\frac{1}{2}=\frac{LD}{1.2}[/tex]

LD = 0.6

Therefore, Distance of point L from AB is 0.6 in.

m∠ABC = m∠ABL + m∠LBC

             = 30° + 30°

             = 60°

i need help pls help me what is the answer to -2(8)

Answers

Answer:

-16

Step-by-step explanation:

hope this helps love <3

help meee will give brainlistq ( please i will do anything but ASAP) ​

Answers

Y=3/2x+7 this is in slope intercept form

Answer:

y = 7/5 x + 34/5

Step-by-step explanation:

what is the answer for -5x-8=3x+10

Answers

Answer:

x=− 9 /4

​or  

=−2.250

Step-by-step explanation:

The point (-3, -5) is on the graph of a function. Which equation must be true regarding the function?
SAAB
Of(-3) = -5
f(-3,-5) = 8
f(-5) = -3
O f(-5, -3) = -2

Answers

Answer:

F(-3) = -5

Step-by-step explanation:

I got it right on the test

Find the slope and y-intercept of the following equation (Encuentra la pendiente y la
intersección con el eje y de la siguiente seuación)
(2 Points)
y = - 3r +9
slope = -3; y-intercept = 9
slope = 9; y - intercept - 3
slope = 3; y - intercept = 3
slope = 9; y - Intercept =
- 27

Answers

Answer:

slope is -3 and y intercept is 9

Step-by-step explanation:

use y = mr + b where m is the slope and m is the y intercept

The length of a rectangle is 4 inches greater than the width. The perimeter of the rectangle is 24 inches. What are the dimensions of the rectangle

Answers

Answer:

L=8, W=4

Step-by-step explanation:

2L+2W=p

2(4)+2(8)=p

8+16=24

Answer:

length = 8 in.; width = 4 in

Step-by-step explanation:

How to Rewrite 8 + 36 as a product of their GCF and the sum of two factors

Answers

Answer:

4 (2 + 9)

Step-by-step explanation:

  Given expression:

              8 + 36

The greatest common factor is the highest number that divides a number:

8 and 36 ;

  Factors of 8 : 1,2,4, 8

                  36 : 1, 2, 3, 4, 9, 18, 36

The highest common factor is 4;

  8 + 36  = 4 (2 + 9)

what's (-9n^6) (8n) equal?​

Answers

Answer:

skp

Step-by-step explanation:

Janie has $37. She earns $9 an hour working for uncle at his landscaping
company. She wants to buy a 3D printer that costs a total of $235. Write an
inequality to determine the number of hours Janie could work to have enough
money to buy the 3D printer. (copy and paste the symbol you need s<>>)

Answers

Answer:

37+9x=295

Step-by-step explanation:

Answer:

235 < $9x + 37

(I might be wrong, not sure)

i need help again sorry

Answers

Answer:

I want say it is C just by how close in proximity it is to E

Step-by-step explanation:

what is the answer to this (-¾)(½)(-⅔) = in simplest form please answer ASAP

Answers

Answer:

1/4

Step-by-step explanation:

cross both 3s and 2s. 1/4 is left.also -×- =+. so it's +1/4

A line passes through (2, −1) with slope 3. What is the equation of the line in slope-intercept form? A. y=3x+5 B. y=3x−7 C. y=13x+5 D. y=−13x

Answers

Answer:

B

Step-by-step explanation:

y=3x+a

3*2+a=-1

a=-7

(–6)² – (–7)²

I need a step by step process.

Answers

Is the = -13. Is the response

g(x) = -x2 + 2x - 9



g(-4)

Answers

Substitute the -4 to the x’s.

g(-4) = -(-4)^2 + 2(-4) - 9

g(-4) = -16 - 8 - 9

g(-4) = -33

Answer:

-33

Step-by-step explanation:

g(x) = [tex]- x^{2} + 2x - 9\\[/tex]

g(-4) = [tex]- ( -4)^{2} + 2 * (-4) - 9[/tex]

       =  - 16 - 8 - 9 = - 33

can someone help me with this

Answers

Answer:

The first one is 45 hours

The second is 1361

Answers
25.45
26.1361

Angad,malachy and Jim share £30 in A ratio 1:3:1 how much does each person get

Answers

Answer:

Angad=6

Malachay=3×6=18

Jim=6

Step-by-step explanation:

Angad,malachy and Jim share =£30 ratio =1:3:1

Let the part of the Angad=X

=3x

=X

So X+3x+X=30

5x=30

X=30/5

X=6

So part of Angad=6

Malachay=3×6=18

Jim=6

Step-by-step explanation:

A:M:J

1:3:1

let total amt be 5x

5x = 30

x = 6

thus, A get 6dollars , M get 18 and J 6

Topic: ratio and proportions

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

You roll an eight-sided die. What is the chance that it will land on either a 2 or a 5? Write your answer as a fraction.​

Answers

Answer:

2/8 and the simplified version is 1/4

Step-by-step explanation:

Answer:

2/8

Step-by-step explanation:

First you know that it is a eight- sided die. 2 or 5 are two numbers so it is 2/8.  

you put all of the numbers and count them up on the top as numerators ex: 2/   Then the number of the sided die as the denominator.ex: 2/8 Hope this helped.

What slope is perpendicular to:
m = 5/8

Answers

the perpendicular slope would be m=-8/5

The slope that is perpendicular to m = 5/8 is given by; m' = -8/5

When dealing with slope - intercept form of equation of a line, the general equation is;

         y = mx + c

where;

m is the slope

c is the y-intercept

Now, for a line to be perpendicular to a line above that has it's slope as m, the slope of this new line will be the negative inverse of the first slope. This is;  m' = -1/m

Applying that to our question, it means the slope that is perpendicular to m = 5/8 is; m' = -1/(5/8) = -8/5

Read more at; https://brainly.com/question/21441448

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP ME I BEGGING YOU PLZZZZZZZZZZZZZZZ HELP!!!! (55 POINTS)


1. Evaluate 8a - b if a = 10 and b = 6

74

38

1000

9000

2. Evaluate expression if a=3 and b=4 . 4b-5a

2

1

-8

8

3. Evaluate Expressions a=3 b=4, 7a + 8b x 2

110

100

80

85

4.Strawberries are $1.95 a pound. Write an expression for p pounds of strawberries.

$1.95+p

$1.95-p

$1.95/p

$1.95p

5. Kenneth has g gumballs. Maggie has 29 fewer gumballs than Kenneth. Choose the expression that shows how many gumballs Maggie has.

g+29

29g

g-29

g ÷ 29

6) 5 + 36 ÷ 2 x 3 - 4

7

55

12

78

7)18 + (6 – 2) × 2

26

29

40

44

8.Expand -3( 2r + 5s).

-6r - 15s

-6r + 15s

-6r - 15

-6r + 2s

9. Expand and simplify 5(2 - 3y)

10 - 15y

10 + 15y

10 - 2y

10 - 3y

10.Factor: 7x + 49y

7(x + 7y)

7(x + y)

can't be factored

7(x + 48y)


11. Factor 6p − 36

6(p − 6)

2(3p − 36)

3(2p − 6)

can't be factored

12. Which expression contains exactly 3 terms?

A. 5 + 6xy

B. 8 + 2y - 5x

C. 9 + 4t

D. 24xy

13. What is the coefficient of x?8 + 5x - y

A. 8

B. 0

C. 5

D. -5

14. Identify the "like terms" in the expression: 2x + 4y - 3x + y - x

A. 2x and 4y and -3x

B. 2x and -3x and x; 4y and y

C. they are all like terms

D. there are no like terms


15. Factor 5x − 25

Answers

Answer:

1. 74 because 8(10) - 6

2.4(4) - 5(3) = 1

3. 7(3)+8(4) * 2 = 106

4. A

5.a

6. 20.5

7.26

8.a

9.a

10a

Step-by-step explanation:

Please help! I’ll give brainleist!

Answers

x and y are equal to 36.8
X and Y are 100% equal to 36.8

help please :(((aaaa

Answers

Answer:

i think its b

Step-by-step explanation:

Answer:

it for sure the second one

Step-by-step explanation:

a line has the equation 3x-2y=6, any line parallel to this line has slope (?)

Answers

Answer:

Slope is 3/2

Step-by-step explanation:

3x-2y=6

-2y=-3x+6

y=3/2-3

Clara lends half her collection of formal attires to her sister, Susan. Clara then buys
four more attires. If she has 12 attires now, how many attires did Clara had initially?

Answers

Answer:

clara had 16 but she gave half that leaves us with 8 + 4 gives u 12

x

2

+ 4 = 12 ; 16 attires  

Answer:

16

Step-by-step explanation:

a:2+4 =12

a:2=12-4

a:2=8

a=8 ×2

a=16 dresses

Step-by-step explanation:

brainliest would be super appreciated

.
HELPPP
The equation of the line in slope Intercept form is

Answers

Answer:

y = 60x + 40

Step-by-step explanation:

It is in the form of

y = mx + b

m is the slope

b is the y intercept.

The y intercept is 40, so it will be y = mx + 40.

The slope is 60, so y = 60x + 40!

9. FLUENCY: ONLY USE A CALCULATOR TO CHECK!
1500 + (6 + 4*) 37
Your answer

Answers

Answer:

1870

Step-by-step explanation:

1500 + (6 + 4) * 37

= 1500 + 10 * 37

= 1500 + 370

= 1870

Answer:

1870

Step-by-step explanation:

1500+(6+4)37

=1500+10*37

=1500+370

=1870

please help i don’t know how to do this

Answers

Answer:

1.) 25

2.)81

3.)49

Step-by-step explanation:

(I recommend getting a Texas instruments TI-84 you can just plug in the numbers and it does it for you :)

A construction company is setting up signs on a 6 3/4 mile stretch of road. If the company places a sign every 3/4 of a mile, how many signs will it need?
Note: the company will place a Sign at the beginning of the stretch,
then every 3/4 of a mile.

Answers

Answer:

10

Step-by-step explanation:

6 3/4 ÷ 3/4 = 9, and plus the sign at the start of the road it would be 10

hope this helps :)

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