Answer:
f(x) = 5x² – 4x + 5 is quadratic function.
Step-by-step explanation:
Given : equations .
To find : Which is a quadratic function?
Solution : We have given that equations
We need to find which one is quadratic .
Standard form of quadratic function is f(x) = ax² + bx + c .
We can see from the given option f(x) = 5x² – 4x + 5 .
Here , a = 5 , b = -4 , c= 5
Therefore, f(x) = 5x² – 4x + 5 is quadratic function.
