Question

Which of the following is a quadratic function

y=2x^3-9y+4

5x-3y=-6

y=2x^2-12x+9

y=-x^2+5√x-16

Answer 1

Answer: y = 2x² - 12x + 9

Explanation:

Quadratic equation must be in the form:

• y = ax² + bx + c

The only equation provided that is in this form is:

• y = 2x² - 12x + 9