Question

What is the y-intercept of the line y=3x-7?

Answer 1

y=mx+b
This is the slope intercept-formula.
Where:
m=slope
b=y-intercept

Compare that to the given equation:
y=3x-7

b=-7

b=y intercept

Final answer:
-7

Answer 2

-7 is the y=intercept...a line in point-slope formula will always look like this: y = mx + b with b representing the y-intercept.