Question

Which of the following functions is quadratic?

A. f(x)=3(3-x)

B. f(x)=2/x^2

C. f(x)=2x^2+3x-5

D. f(x)=7^2

Answer 1

The answer to this problem is C. Hope this helps !

Answer 2

`\boxed {\text{C. }f(x)=2x^(2) + 3x - 5}`

Explanation:

A quadratic function has the form ƒ(x) = ax² + bx + c, where a, b, and c are numbers with a ≠ 0.

C.
`\boxed {f(x)=2x^(2) + 3x - 5}` is correct, because it has the same form as in the definition.

A is wrong, because it does not have a term in x².

B is wrong, because the x² term is in the denominator.

D is wrong, because it does not have a term in x².