precalculus
posted by katrina .
For the Function, y= x(x4)(x+8)
Yintercept is:
Xintercept is:

when x = 0
y = 0
That is the y axis intecept
when y = 0
x = 8, 0 or 4
Those are the x axis intercepts.
Since it is a cubic it is likely to cross the x axis three times.