gormancharmyane gormancharmyane
  • 11-04-2019
  • Mathematics
contestada

please help me!
which of the following functions is quadratic?
A. f(x) = 2x^2 + 3x -5
B. f(x) = 3 ( 3 - x )
C. f(x) = 7^2
D. f(x) = 2/x^2

Respuesta :

jamuuj jamuuj
  • 11-04-2019

Answer:

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

Step-by-step explanation:

  • A quadratic function is a function of the form f(x) = ax² + bx + c, where a, b, and c are numbers with a not equal to zero.
  • Therefore; The function, f(x) = 2x^2 + 3x -5, is a quadratic function since it is in the form of  f(x) = ax² + bx + c.
  • Additionally, a quadratic equation is an equation of second degree, such that it contains at least one term that is squared. In this case, 2x^2.

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