Question

A line has a slope of 7 and contains the point (5, −9).

Which equations represent the line?

Choose all answers that are correct.

A.
−7x + y = −44

B.
7x – y = 44

C.
(y − 9) = 7(x + 5)

D.
(y + 9) = 7(x − 5)

Answer 1

@iGreen

Answer 2

I can help

Answer 3

@horsegirl27

Answer 4

please do

Answer 5

First of all I think it's B or C let me work on it. You try it too and tell me what u get

Answer 6

k

Answer 7

We use the point-slope form..

\(y - y_1 = m(x - x_1)\)

Where \(y_1\) is the y-value of the point, \(x_1\) is the x-value of the point, and \(m\) is the slope.

Here, \(y_1\) is -9, \(x_1\) is 5, and \(m\) is 7.

Plug them in what do you get?

Answer 8

i got B

Answer 9

@horsegirl27 Please don't give answers..we have to guide the asker to the answer.

Answer 10

but idk the second answer

Answer 11

ok sorry u already explained so I was confirming the final answer ;)

Answer 12

B is incorrect..

Answer 13

but using the point slope form you'll have:
(y-y1) = m(x-x1)
y - (-9) = 7(x -5)
y + 9 = 7(x - 5)
or
y + 9 = 7x - 35
7x - y = 9 + 35
7x - y = 44

or multiplying the whole equation with -1
7x - y = 44
-7x + y = -44

Answer 14

???????????????????

Answer 15

Yep, -7x + y = -44 is correct..

And so is y + 9 = 7(x - 5)

Answer 16

y + 9 = 7(x - 5)

Distribute 7 into the parenthesis:

y + 9 = 7x - 35

Subtract 9 to both sides:

y = 7x - 44

Subtract 7x to both sides:

-7x + y = -44

Answer 17

so A and D?

Answer 18

@undeadknight26

Answer 19

@fallenangelorchid

Answer 20

@sleepyjess

Answer 21

using the point slope form you'll have:
(y-y1) = m(x-x1)
y - (-9) = 7(x -5)
y + 9 = 7(x - 5)
or
y + 9 = 7x - 35
7x - y = 9 + 35
7x - y = 44

Answer 22

or multiplying the whole equation with -1
7x - y = 44
-7x + y = -44

Answer 23

k thx

Answer 24

but theres 2 right answers

Answer 25

Yeah, i'd go with A and D.

Answer 26

k thx soooo much