Question

Help me with my math

Answer 1

There's a trick to know here:

    If (a,0) or x=a is an x-intercept, then (x-a) is a factor of the polynomial.

From your graph, you have x=0, x=5, and x=7 as the x-intercepts.

Then (x-0), (x-5), and (x-7) are factors of the polynomial.

  (Note: (x-0) would usually be written just as "x".)

So, the factored form is v(x) = x (x-5) (x-7)