Which of the following are quadratic functions?

***Choose all that apply.
And please explain!! thank youuu :D

(Will attach answer choices in a sec!!)

Question

Which of the following are quadratic functions?

***Choose all that apply.
And please explain!! thank youuu :D

(Will attach answer choices in a sec!!)

anonymous · Answer

Answer choices A,B,C,D from top to bottom...
I can choose ALL that apply.

Thanks!! :D

anonymous · Answer

The 1st and the 3rd

anonymous · Answer

A,C
this are functions with highest power as 2

anonymous · Answer

B is linear
D is cubic

anonymous · Answer

kk so the answer are A,C??
because they both have ^2 in it??

anonymous · Answer

does ^2 make it quadratic??

anonymous · Answer

yup

anonymous · Answer

no

anonymous · Answer

wait what?? @Rimplestorck what did u mean when u said yup and @Jonask what did u mean when u said no??

anonymous · Answer

$$y=x^2+\frac{ 1 }{ x }$$

anonymous · Answer

not quadratic it has to be polynomial and highet power 2

anonymous · Answer

so my final answer are A and C? the two equations containing the ^2 in it??

anonymous · Answer

yes

anonymous · Answer

awesome!! thank you for the help and the explanations!! :D

anonymous · Answer

answers A and C it is then!! :) thx :)