Homework Help: ALGEBRA

Posted by ggift on Thursday, September 17, 2009 at 3:19pm.

x^2 + 6 = -8x
Is this linear, quadratic or exponential??

ALGEBRA - MathMate, Thursday, September 17, 2009 at 4:10pm
Linear will have terms containing variables not raised to any power, as well as constant terms.
Example: 2y+4x-3=0

A quadratic expression will have terms containing the variable raised to a maximum power of 2.
Example: x²+3x-4=0

An exponential expression will have terms which raise to a power containing the variable.
Example: 4^{x+4 - 65536 =0}
ALGEBRA - ggift, Thursday, September 17, 2009 at 4:39pm
So with the X being squared it would be exponential then?
ALGEBRA - MathMate, Thursday, September 17, 2009 at 5:31pm
x² 's exponent does not contain x, so it is not exponential.
It is exponential when the variable (for example, x) is found in the exponent, as in 3^x+4^x = 5^x.
So x² is NOT exponential.

If you reread the examples, it will be much clearer.

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