Question

What is the equation of the line that passes through the points (−3, 2) and (−5, 8)?

3x − y = −11

3x + y = − 7

3x + y = 5

x + 3y = 3

Answer 1

First you want to find the slope. Do you know the slope formula, Chrstine?

Answer 2

yes slope=y2-y1/x2-x1

Answer 3

slope=-3

Answer 4

Alright. Now take that -3 slope and use the formula y - y1 = m(x - x1)

Answer 5

y-2=-3(x-(-3))
y-2=-3x-9
+2 +2
y=-3x-7

is that correct?

Answer 6

Now put it in Standard notation.

Answer 7

y=-3x-7
+3x +3x
3x+y=-7

is that the answer?

Answer 8

THANK YOU!!!!