Question

Which of the following functions is quadratic?
A.f(x) = 2/x^2
B. f(x) = 3(3-x)
c. f(x) = 7^2
D. f(x) = 2x^2 +3x - 5

Answer 1

Answer:

D

Step-by-step explanation:

the 'x' term is squared but not in the denominator