Draw a quadratic function below with zeros at -3 and 5 that is also concave up.

Hello from MrBillDoesMath!

x^2 - 2 x - 15

Discussion:

( x - (-3)) * ( x- 5) =

(x +3) (x-5) =

x^2 - 2 x - 15

It is a concave upward curve (looks like a "u") as the x^2 term causes the function to grow larger as x approaches +\- infinity.

Thank you,

MrB

look a the sides they are perpendicular