Question

Find the equation of the line that passes through the points (-2, 3) and (1, -6).
Write your answer in Standard Form.
Answer

A: 3x + y = 3
B: 3x + y = -3

C: -3x – y = -3

D: -3x – y = 3

Answer 1

Step 1 is to find the slope. How do we do this?

Answer 2

y2-y1/x2-x1

Answer 3

good, so what do you get for the slope?

Answer 4

-3

Answer 5

perfect

Answer 6

y = mx + b

y = -3x + b ... Plug in the slope you just found

Answer 7

Now plug in either point. I'm going to pick (-2,3)

Answer 8

y = -3x + b

3 = -3(-2) + b

Solve for b

Answer 9

b=-3

Answer 10

so c

Answer 11

?

Answer 12

one sec, sry

Answer 13

yes, b = -3

So the equation

y = -3x + b

becomes

y = -3x - 3

Answer 14

thankssssssssssssssssss

Answer 15

Now convert to standard form