Answer:
m = -7
b = -15
Explanation:
This is an equation in slope-intercept form, already. The generic form of the slope-intercept equation is: y = mx + b, where m is the slope and b is the y-intercept.
Here, we have y = -15 - 7x, which we can rearrange into y = -7x - 15. Notice that m here is -7, so the slope is -7. Also notice that the b here is -15, so the y-intercept is -15.
Hope this helps!