Question

Fill in the missing term so that the quadratic equation has a graph that opens up, with a vertex of
(– 2, – 16), and x intercepts at x = -6 and x = 2. (Do not include the negative sign in your answer.)

y = x2 + 4x − ___

Answer 1

plug in the x values and see where that leads you

Answer 2

y = x2 + 4x − n

fill in the xs to get:

y = s - n ; and you want y to equal 0 so;

y-s = -n

s-y = n

Answer 3

or something along those lines