Question

Medal (attached)
Which of the following equations represents a quadratic function?

Answer 1

Quadratic function in x or in y

Answer 2

its option D because quadratic function is ax^2 + bx + c

Answer 3

If it is in x, it is the last choice

Answer 4

isnt it =c and not +

Answer 5

yeah If it is in x, it is the D
If it is in y, its is C

Answer 6

huh? that confused me

Answer 7

well in short both C and D are quadratic function
but C is w.r.t variable y
and D is w.r.t variable x

Answer 8

okay

Answer 9

good :D

Answer 10

Oh thanks but @eliassaab deserve that medal the most :D He is a great instructor :)

Answer 11

i can take it back if you want? i didnt know who to give it to lol

Answer 12

no really give it to him :)