Answer:
y = -3x - 2
Step-by-step explanation:
As we move to the right from (-1, 1) to (2, -8), x increases by 3 and y decreases by 9. Hence, the slope of this line is m = rise / run = -9/3 = -3.
Start with the general slope-intercept form: y = mx + b.
Substitute -8 for y, 2 for x and -3 for m:
-8 = -3(2) + b
So, b = -2, and the desired equation is y = -3x - 2. Note that (-1, 1) satisfies this equation.
