Question

Which of the following equations is a quadratic equation ?

a. y = x^2 + 4
b. y = 1/2x^2
c. y = 3x - 9
d. y = 3x^3

Answer 1

I've never seen a quadratic equation that had x, and y in it. Does the y represent a constant, or a variable?

Answer 2

a variable.

Answer 3

idiot question. now you wiz, the question

Answer 4

quadratic equation is
\[ax^2+bx+c=0\] or something that can be turned in to that form

Answer 5

That's when my teacher gave me. So idk?

Answer 6

both a and b are quadratics. tell your teacher that a quadratic equation doesn't look like any of these

Answer 7

Ima just circle B, then.

Answer 8

oh wait. is b
\[\frac{1}{x^2}\]? if so it is not a quadratic

Answer 9

no just circle A

Answer 10

Ok thanks.

Answer 11

yw

Answer 12

god help us