Question 1195079
{{{y=2(x^2-13x+36)}}}

{{{y=2(x-4)(x-9)}}}----------------the answer for part (b)

Zeros at x for 4 and for 9.
Symmetry axis will be at the vertical line, {{{x=6&1/2}}}.
You can use this to find the vertex point.


Review how to Complete The Square.