The vertex of a quadratic function is (6, 2), and the y-intercept of the function is (0, −70). the equation of the function in vertex form, f(x) = a(x - h)2 + k, is shown. –70 = a(0 – 6)2 + 2 what is the value of a? a =

We just have to solve this equation for a.  Start by simplifying within the parenthesis, always the first place to start.  .  Now take care of the exponents, always the second thing in order of operations.   .  Subtract 2 from both sides to get  -72 = 36a  and divide both sides by 36 to get that a = -2.

The internet will you