2.is y=7x + 12 a quadratic function or not? Solution y=7x + 12 is a not quedratic function since its highest degrratic 1.
3. is f(x)=(×-2)(×+ 32) x2 a quadratic fanction or not? Solution: y =(×-2) (×+ 3) ×2 is a not quadratic function because if you will expand the right side, its highest degree will be ic
4. Consider the graph of the quadratic function f(×)=×2+6×+8.​