Question

Which represents a quadratic function?

*
f(x) = -8x3 - 16x2 - 4x
f(x) = * x2 + 2x - 5
px) = - ] +1
f(x) = 0x² – 9x+7

Answer 1

f(x)=x2 + 2x - 5 represents a quadratic function