Question

Select all of the following functions that are quadratic.

y = 2x2

3 = 2x2 – 8

y = –2 + 2x – 8

y + 3x = 2x2 – 8

y +3x2 = 2x + 3x2 – 8

Answer 1

Quadratic means that the highest degree in the function is some variable squared.

Answer 2

So which answer choices have \(\sf x^2\) in it?

Answer 3

quadratic is in form of :\[f(x)=ax^2+bx+c \\ a \neq 0\]