What is an equation in point-slope form of the line that passes through (-7. 1) and (-3, 9)?
A. y+ 3 = 2(x-9)
B. y-3 = 2(x +9)
C. y + 9 = 2(x - 3)
D. y - 9 = 2(x + 3)

Answers

Answer 1

Answer:

D

Step-by-step explanation:

general equation of point slope is

(y-y1)=m(x-x1) where

m-is the slope

(x1,x2) is any point that belongs to the line

For (-7,1) and (-3, 9) you have to

first find the slope

m= (y2-y1) /(x2-x1) = (9-1)/ (-3- -7)= 8/(-3+7) = 8/4 =2

second pick any of your 2 given points for example (-3, 9)

now you substitute m=2, and (-3,9) in your general equation

(y-9) = 2( x- -3) so the equation is (x-9) =2(x+3)


Related Questions

Make it 0 on one side

x2 - 2x + = 4(x2-2x +1)-3

Answers

Answer:

-3x² +6x -1 = 0

Step-by-step explanation:

x2 - 2x + = 4(x2-2x +1)-3

x² - 2x = 4x²-8x +4 - 3

x²-4x²-2x+8x = 4-3

-3x² +6x = 1

-3x² +6x -1 = 0

4. Evaluate: (-7 - 41)(8 - 6) A) -32 + 10i C) -80 - 10i B) -80 - 10i D) -32 + 741

help me please

Answers

Answer:

Step-by-step explanation:

(-7-41)(8-6)

-48*2

-96

This is what I got. I don't see anything in the equation that has "i" in it.

If it is supposed to be (-7-4i)(8-6) foil the problem.

-56+42-32i+24i  combine like terms

the answer is -14-8i

29 can go into 57 how many times

Answers

Answer: 1.96551724138

Step-by-step explanation:

Answer:

1653

Step-by-step explanation:

89 + z = -38, z =
what is the answer

Answers

Answer:

-127

Step-by-step explanation:

89+z=-38

-89     -89

z=-127

Answer:

127

Step-by-step explanation:

89+z=-38

89+38=z

127=zor z=127

elton is a candle maker each 15 cm long candle he makes burns evenly for 6 hours

if elton makes a 45 cm long candle how long would it burn?


PLSSSSS HELP ME WITH THIS

Answers

15cm = 6 hours

45cm = 18 hours

Answer : 18 hours
The answer is 18 hours.

15/45 = 3 , 6 • 3 = 18 hours

Natasha and Richard win some money and share it in the ratio 5:2. Natasha gets £75. How much did Richard get?

Answers

Answer:

Richard got $30

Step-by-step explanation:

To find how much money Richard got, use cross multiplication:

[tex]\frac{5}{2}=\frac{75}{x}[/tex]

5x = 150

x = 30

Richard got $30.

Please helppp I’m struggling give your awnser in simplest form.

Answers

Answer:

[tex]\frac{3}{4}[/tex]

Step-by-step explanation:

To find the slope, you need to find any 2 points on the line.

In this case, there is a point at (0, 0), and a point at (4, 3).

Formula for slope: [tex]m = \frac{rise}{run}[/tex]

The rise is the change in the y axis from point 1, in this case (0, 0), to point 2, in this case (4, 3). The run is the change in the x axis from point 1 to point 2.

You can subtract the point 1 values from point 2 to get the rise and run:

[tex]m = \frac{3 - 0}{4 - 0} = \frac{3}{4}[/tex]

help asap show work plzz

Answers

Answer:

slope= -5/2

slope= -1

slope=1/2

10. slope=-1/3

-5y=7x+20

y=-7/5x-4

11. slope=-7/5

y=-5x+3

12. slope = -5

Tysm show the work...... TYYYY

Answers

Answer:

48

Step-by-step explanation:

by doing LCM

Answer:

4 arrangements

Step-by-step explanation:

The greatest number that both 8 and 12 are divisible by is four. If you were to split them up into four arrangements, each one would have two pink roses (8/4=2) and three white roses (12/4=3) with no leftovers :) so visually it would look like WWWPP WWWPP WWWPP WWWPP

Ignore the selected answer in this, I just need to know what the value is pls. 15 POINTS!!!

Answers

Answer:

Try C. if not then its B.

Step-by-step explanation:

What is -1 2/5 - (-1/5)?​

Answers

Answer:

-1 1/5

Hope this helped!

Also I would really appreciate it if you made me the brainliest! :D

Can anyone help me with this! I’ve done most of it but I don’t know weather it’s correct or not!!!

Answers

Answer:

1)+infinity

Step-by-step explanation:

please help! will give brainliest and please answer seriously
the diameter of a circle is given. find the radius

Answers

Answer:

13. r = 7.5cm

14. r = 3.25in

15. r = 1.5 ft

16. r = 4m

Step-by-step explanation:

d/2 = r

Divide the diameter by 2 to get the radius

Answer:

Hey buddy, here is your answer. Hope it helps you .

Step-by-step explanation:

13. Radius= diameter/2

= 15/2

= 7.5cm

14. 6.5/2

= 3.25 in.

15. 3/2

=1.5 ft

16. 8/2

=4 m

-(5x –4) = 49 a.x = -9 b.x = -8 c.x = 9 d.x = 8 HELPPPPPPPP

Answers

Answer:

x = - 9

Step-by-step explanation:

Given

- (5x - 4) = 49 ← distribute the parenthesis by - 1

- 5x + 4 = 49 ( subtract 4 from both sides )

- 5x = 45 ( divide both sides by - 5 )

x = - 9

someone help me plzzz this is absolute value thx

Answers

Answer:

10: -5

11: 9

12: 12

Step-by-step explanation:

I got to put stuff here but those answers are correct

Answer:

im stealing these

Step-by-step explanation:

Which point is a solution to the inequality shown in this graph?

Answers

Answer:

D

Step-by-step explanation:

It is on the line so it is a solution, hope this helps

Answer:

i think its c not sure tho

Step-by-step explanation:

Look Please"/--------

Answers

Answer:

80

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

i did 12*6 then i did 2*4 then i add the products

Which one is greater 26% or 0.3

Answers

Answer:

0.3 is greater

Step-by-step explanation:

The only way to compare these is to get them into the same format. Then, we will see which is larger. The way to convert a decimal to a percent is to move the decimal 2 places to the right.

0.3 = 30%

30% > 26%

f(x)=-x²-2x-8 determine the vertex

Answers

Answer:

vertex = (- 1, - 7 )

Step-by-step explanation:

Given a parabola in standard form, f(x) = ax² + bx + c (a ≠ 0 )

Then the x- coordinate of the vertex is

[tex]x_{vertex}[/tex] = - [tex]\frac{b}{2a}[/tex]

f(x) = - x² - 2x - 8 ← is in standard form

with a = - 1 and b = - 2, then

[tex]x_{vertex}[/tex] = - [tex]\frac{-2}{-2}[/tex] = - 1

Substitute x = - 1 into f(x) for corresponding y- coordinate

f(- 1) = - (- 1)² - 2(- 1) - 8 = - 1 + 2 - 8 = - 7

vertex = (- 1, - 7 )

For a quadratic function like this, the vertices are points of symmetry.
We can use a shortcut such that:
x
=

b
2
a

In your case,
b
is 2 and
a
is 1. So:

2
2

1
=

1
Answer is -1

I said I would give away all my points. So here take them. Here's the last 39.

Answers

Answer:

thx REEEEEEE HIT OR MISS I GUESS THEY NEVER MISS HUH??

Answer:

im srroy for u

Step-by-step explanation:

will give brainliest

Answers

Answer:

It is proportional with A.

Step-by-step explanation:

y=2x-6
-3. Y
0. Y
3. Y
6. Y
Solve for Y

Answers

Answer:

y=0

Step-by-step explanation:

y=2x-6 (add 6 to both sides)

6=2x (divide 2 to both sides)

3=x

-----------------------------------------------------------------------------------------------------------------

y=2(3)-6

y=6-6

y=0

HELP THIS IS THE 5TH TIME I POSTED THIS BRUH

Answers

Answer:

it's blurry all i see is pixels...

i'll help if you send me a picture...

Step-by-step explanation:

1.2
Determine the area of the square ABCD with
AB=3cm.
А 3ст в
D
C С​

Answers

Answer: 9

the area of the square ABCD is 3² = 9 (cm²)

Step-by-step explanation:

18+6q=9
please solve this​

Answers

Answer:

Exact Form: q = -3/2

Decimal Form: q = -1.5

Mixed Form: q = -1 1/2

Step-by-step explanation:

Hope this helps!

Answer:

6q=9-18=( -9)

q=(-9)/6

q=(-3)/2

If f(x) = 4x + 5. what is the value of f (-3)?

Answers

Plug in -3 for x
f(-3) = 4(-3) + 5
f(-3) = -12 + 5
f(-3) = -7

Answer:

f (-3) = 7

Step-by-step explanation:

f (-3) = 4 (-3) + 5

       = -12 + 5

       = -7

can someone please help me please and thank you. with both of them i need a math genius I'll mark you brainliest​

Answers

Answer:

The first one is $41,400. The second one is 3,600,000 acres.

Step-by-step explanation:

The first one is $41,400 and the second one hold up let me check

What is the image of (-6, 7) after a reflection over the x-axis?

Answers

Answer:

on reflection on x axis

P(x,y) = P' (x, -y)

so

(-6, 7) = (-6, -7)

Step-by-step explanation:

What is the sign of B + A? Choose 1 answer: Positive B Negative Neither positive nor negative-the sum is zero.​

Answers

ince they are equal in absolute value and merely differ in being positve or negative, result in a sum of 0

Brainlist help now
question in the picture .

Answers

It’s just C anyway if you need anymore help lmk id be glad C. -2

Answer:

A

Step-by-step explanation:

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