Which represents a quadratic function? f(x) = −8x3 − 16x2 − 4x f (x) = three-quarters x 2 + 2x − 5 f(x) = StartFraction 4 Over x squared EndFraction minus StartFraction 2 Over x EndFraction + 1 f(x) = 0x2 − 9x + 7

Step-by-step explanation:

Given

Required

Which of the above is a quadratic function

A quadratic function has the following form;

So, to get a quadratic function from the list of given options, we simply perform a comparative test of each function with the form of a quadratic function

This is not a quadratic function because it follows the form and this is different from

This function has an exact match with

By comparison;

This is not a quadratic function because it follows the form and this is different from

This is not a quadratic function because it follows the form

Unlike the quadratic function where

So, from the list of given options, only satisfies the given condition

a is the right answer

i would say b) is your answer

sorry if im wrong

step-by-step explanation: