Question

y=-8x-5; what is the y-intercept in this equation? and how did you arive at the answer.

Answer 1

The y-intercept is the point at which a function passes the y-axis. You can obtain this point by replacing the x in the function with a zero since every point on the y-axis is (0,y). You plug 0 in the function and you obtain -5.

Answer 2

y=mx+b
where
b=y intercept
thus,
your y intercept is b which is equal to-5