The function $f$ is a quadratic function. In the $xy$-plane, the grap…

Question

Prompt

The function

f

is a quadratic function. In the

x y

-plane, the graph of

y = f (x)

has a vertex at

(1, 4)

and passes through the points

(2, 28)

and

(- 1, 100)

. What is the value of

f (- 2) - f (0)