Question

Which equation is NOT a quadratic equation?

A. y = x2 + 6x - 5
B. y = 2x + 5
C. y = 2x2 + 5
D. y = 4x2

Answer 1

what do you think a quadratic equation means?

Answer 2

Dawn, I am asking you, in your opinion, what does a quadratic equation mean?

Answer 3

sorry i was away putting my hair up i think it might mean an equation tht can be graphed.. i dont rly kno :P

Answer 4

a quadratic equation is of the form \[ax ^{2}+bx+c\]

Answer 5

It wouldn't hurt to know what a linear equation is too!

y=mx+b

Answer 6

yes, I was about to say what craig just said.

Answer 7

oh yea isnt that standard form
uh ik wut THAT is craig.

Answer 8

yes, that is the standard form of expressing a quadratic equation.
\[ax ^{2}+bx+c =0\]

Answer 9

it would be D rite.

Answer 10

I didn't put the =0 in my earlier equation. It wouldnt be an equation it it doesnt equate to something :D

Answer 11

how is it D?

Answer 12

Bc did u read my problem?

Answer 13

lol like the answer part

Answer 14

yes, I read your problem.

Answer 15

lol thx tho for helping me but my dad just told me it is D is it?

Answer 16

No, it is not D. A quadratic equation is a polynomial raised to the second degree.

Answer 17

oh haha wow daddy! :P

Answer 18

In mathematics, a quadratic equation is a polynomial equation of the second degree. The general form is

ax^2+bx+c=0,

where x represents a variable, and a, b, and c, constants, with a ≠ 0. (If a = 0, the equation becomes a linear equation.)

Answer 19

and, btw, ALL equations can be graphed. graph, are, well, graphical representations of equations.

Answer 20

so now, it is easy to see which choice is not a quadratic equation, right?

Answer 21

ok hold on im reading what u said sorry so many ppl to tlk to!

Answer 22

so then would it be B.?

Answer 23

right.

Answer 24

http://en.wikipedia.org/wiki/Quadratic_equation

Answer 25

YAY!! thx haha in math i just black out.... :P im more of a writer lol

Answer 26

thx anyways tho!!

Answer 27

you are welcome. In math you just have to break down your problems into smaller parts and try to understand what the smaller parts mean. If you don't understand the smaller part, break it into smaller parts still. Apply logic and you will get your answer. :)

Answer 28

well tanx u for that piece o wisdom lol (:

Answer 29

heh.