Question

Which is a quadratic function? A y = X-9 B y = x² +9 C y = x + 2x -9

Answer 1

Answer:

B y = x² +9

Step-by-step explanation:

A quadratic function must have the highest power of x being x^2 and must have an x^2 term

A y = X-9  - linear

B y = x² +9 quadratic

C y = x + 2x -9 - linear

Answer 2

The answer is b !!!!!