Answer:
-12
Step-by-step explanation:
Slope-intercept form of a line is y=mx+b where m is the slope and b is the y-intercept.
We are given m=-7 and a point (x,y)=(-1,-5) in on the line.
Entering this information into y=mx+b, we will be allowed enough information to find the y-intercept, b.
y =mx+b with m=-7 and (x,y)=(-1,-5):
-5=-7(-1)+b
-5=7+b
Subtract 7 on both sides:
-5-7=b
-12=b
So the y-intercept is -12.
