Question

Which of the following is a quadratic function?

y = x2 – 81
y = x4 – 64
y = x – 9
y = x3 – 27

Answer 1

A quadratic polynomial is a polynomial with leading degree of two, look at the polynomials and find the one whose leading degree is two.

Answer 2

y=x2-81

Answer 3

@Jack175

Answer 4

That is correct.

Answer 5

thanks