superstitches
superstitches superstitches
  • 28-04-2019
  • Mathematics
contestada

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

Respuesta :

erinsmith2021
erinsmith2021 erinsmith2021
  • 28-04-2019

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

Answer Link
znk
znk znk
  • 28-04-2019

Answer:

[tex]\boxed {\text{C. }f(x)=2x^{2} + 3x - 5}[/tex]

Step-by-step explanation:

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

C. [tex]\boxed {f(x)=2x^{2} + 3x - 5}[/tex] 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.

Answer Link

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