Which of the following are quadratic functions?

(more than one answer will work)

A. y=2x^2-3x+7

B. y=3x-4

C. y=x-x^3

D. y=((5x-3x^3)/4)+1

I think one answer is A but idk about the rest

Question

Which of the following are quadratic functions?

(more than one answer will work)

A. y=2x^2-3x+7

B. y=3x-4

C. y=x-x^3

D. y=((5x-3x^3)/4)+1

I think one answer is A but idk about the rest

zepp · Answer

Quadratic function's highest exponent is 2

anonymous · Answer

so A  and C... but what abiut D it just looks weird

anonymous · Answer

about*

zepp · Answer

A is right
B is a linear function
C is a polynomial function
D is also a polynomial function.

anonymous · Answer

oh so just A is a quadratic function

zepp · Answer

Yes.