Posted by **Anonymous** on Tuesday, September 8, 2009 at 8:36am.

State whether each equation in Exercises 25–30 represents a linear,

quadratic, or exponential function. Tell how you decided.

3x^2=5

*I believe this equation is a exponential function but, I'm not sure how to explain it.*

- MATH -
**MathMate**, Tuesday, September 8, 2009 at 8:48am
The determinant factor is the exponent.

If the variable is in the exponent, then it is exponential. For example,

4^{x+1}=10

If the maximum value of the exponent is two, then the expression/equation is quadratic. For example:

x²+3x+1=0

If the maximum of the exponent is 1, or if exponents are absent (i.e. =1), it is linear. For example,

4x+5y=3

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