Answer:

Explanation:
Zeros of a function:
Given a polynomial f(x), this polynomial has roots
such that it can be written as:
, in which a is the leading coefficient.
Root of multiplicity 2 at x = 5 and a root of multiplicity 1 at x = -1.
This means that

So





The y-intercept is y = -10.
This means that when
. We use this to find a.



. So
