Question

Complete the equation of the line through (2,1) and (5,-8)
Use exact numbers.

y=

Answer 1

-3x+7

Explanation:

If it is on khan you will get it right

Answer 2

y=-3x+7

Because
y=mx+b

m= slope (3/-1 which simplifies to -3)
x
b= y-intercept (y-intercept is where the line hits the y axis, which that line hits the line at the y intercept of 7

so when u put it into an equation, you have your answer of:
y=-3x+7