NEED EXPLANATION ON ACT MATH REVIEW Q: When graphed in the standard (x,y) coordinate plane, which of the following equations does NOT represent a line?
A. x=4
B.3y=6
C. x-y=1
D.y=3/4x-2
E. x^2+y=5

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- anonymous

- schrodinger

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- anonymous

@Vocaloid help please?

- anonymous

E
If x is to a power that is not 1, the equasion is not a line.
A. is a horizontal line
B. is a vertical line
C. is a line of slope=1
D. is a line of slope=3/4
E. is a PARABOLA. "x^2" is a giveaway sign of a parabolic function
Therefore, the answer is E

- anonymous

Also: A linear equation is 1st degree. Answer choice 'E' is the only equation that is not 1st degree.

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## More answers

- anonymous

- anonymous

ok, thanks for the help!

- anonymous

yeah of course :)

- anonymous

wait, wouldn't a parabola still be a line, just not a straight one?

- anonymous

- anonymous

no I don't think so

- anonymous

let me look it up real quick

- anonymous

oh you are right

- anonymous

but I still think the answer is E

- anonymous

ill look up the answer real quick I'm using a ACT prep book

- anonymous

it was E

- anonymous

ok

- anonymous

:)

- zepdrix

line means straight line in the land of math :)
no parabola is not a considered a line.
it is a path, or curve, but not a line.

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