Question

Find the equation of the quadratic function with zeros 16 and 18 and a vertex at (17, -2)

Answer 1

well the equation is

y =a(x -16)(x -18)

substitute the point to find the value of a

when you know a, just distribute

Answer 2

Lolz beat me to it! @campbell_st

Answer 3

Or if you don't want to do all that work, just input the vertex (17,-2) and the point (18,0) into this equation y = a(x - h)^2 + k as follows:

0 = a(18 - 17)^2 - 2

Then solve for a