kumar2006
Which equation represents a quadratic function?
(1) y = x + 2 (3) y = x
2
(2) y = ∙x + 2∙ (4) y = 2



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joeywhite
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none of then  a quadratic equation will contain a squared variable like x^2

kumar2006
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are you sure

joeywhite
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* quadratic function

kumar2006
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Well that's the only choices I have, It doesnt say none of these above.

joeywhite
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hhm  think so
y = x^2
y = x^2 + 3x 2 are quadratics

kumar2006
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Which one from the multiple choice is it?

joeywhite
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 i'm going by the uk definition  maybe its different in other countries
all the above options are linear aren't they?

kumar2006
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Yes but thats not of the options man

kumar2006
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I gave you the multiple choice above.

joeywhite
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ioh  is the no 3 y = x2 ( or x^2) ?
if so thats the one

joeywhite
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 i thought maybe that was a typo!

kumar2006
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Thanks Dude

joeywhite
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yw man