Answer:
This is y = 2x² - 12x + 9 function.
Explanation:
Given : functions.
To find:Which of the following is a quadratic function.
Solution: We have given functions
Quadratic function :
A quadratic function is one of the form f(x) = ax² + bx + c, where a, b, and c are numbers with a not equal to zero.
We can see from the given options y = 2x² - 12x + 9 this is in the form of quadratic function .
Where a =2 , b= -12 , c= 9.
Therefore , This is y = 2x² - 12x + 9 function.