Question

Write the equation of the line passing through the points (-4,-7) and (8,-13)

Answer 1

Answer:

y=-1/2x-9

Step-by-step explanation:

First, solve for the slope, m.

m= y2-y2/x2-x1

m= -13-(-7)/8-(-4)

m= -6/12

m= -1/2

Plug in the slope into the formula y=mx+b.

y= -1/2x + b

-7= -1/2(-4) + b

-7= 2 + b

(subtract 2 from both sides)

-7-2 = b

-9 = b

FINAL ANSWER:

y=-1/2x+-9

y=-1/2x - 9