Answer:
The slope is -2, and the y-intercept is 12
Step-by-step explanation:
Slope = y2 - y1 / x2 - x1
Slope = 18 - 12/ -3 - 0
Slope = 6/-3
Slope = - 6/3
Slope = -2
So the slope is -2
When x was 0 y intercept was 12. Therefore, y-intercept = 12
y-intercept = 12
