Which of the following are quadratic functions?

Check all that apply.

a. y=2(x-3x^2+1)
b. y=5+2x
c. y=1/2x^2-13x+4
d. y= x/x-1 Which of the following are quadratic functions?

Check all that apply.

a. y=2(x-3x^2+1)
b. y=5+2x
c. y=1/2x^2-13x+4
d. y= x/x-1 @Mathematics

Question

Which of the following are quadratic functions?

Check all that apply.

a. y=2(x-3x^2+1)
b. y=5+2x
c. y=1/2x^2-13x+4
d. y= x/x-1  Which of the following are quadratic functions?

Check all that apply.

a. y=2(x-3x^2+1)
b. y=5+2x
c. y=1/2x^2-13x+4
d. y= x/x-1  @Mathematics

anonymous · Answer

A is the Quadratic function.

anonymous · Answer

The easiest way to solve it is to plug it into a calculator as it is.

anonymous · Answer

I thought there was more than one answer? :/

anonymous · Answer

Alright let me look into it :D

anonymous · Answer

thank you!

anonymous · Answer

A. Yes, Makes really narrow parablola which is equal means its quadratic
B. no. Straight linear line
C.No. Linear line down
D. no slope
:( A seems to be the only answer

anonymous · Answer

I guess c. was also the answer but thank you

anonymous · Answer

Sorry for mistake C is one of them too.

anonymous · Answer

If the equation has x^2 on it it most likely* means that its quadratic, and if you are using a calculator you go on window and make the Maximum and minimum ranges 100 and you can clearly see that A and C is parabola.

Answer a and c :D Sorry for the mistake

jhonyy9 · Answer

a and c are quadratic functions