Question

How the heck!?

Fill in the missing term so that the quadratic equation has a graph that opens up, with a vertex of
(– 3, – 25), and x intercepts at x = -8 and x = 2.

How do they expect me to do that!??

Answer 1

The term is: y = x2 + 6x − ___

The final term on the end is missing

Answer 2

solved this for someone already here. Simply expand (x+8)(x-2)

Answer 3

x^2 -2x + 8x - 16
x^2 + 6x - 16?

Answer 4

so compare that with the given one.

Answer 5

What do you mean?

Answer 6

Isn't the last term -16?

Answer 7

The negative is already included in the question..