SOLUTION: I need to create an equation of a nonlinear function. I don't know what this is. Can you please give me an example? Thanks so much.

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Question 461084: I need to create an equation of a nonlinear function. I don't know what this is. Can you please give me an example? Thanks so much.
Found 2 solutions by oberobic, richard1234:
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
A nonlinear equation is one in which x has a power.
For example
y+=+x%5E2
.
Note that a nonlinear equation is one that cannot be a straight line.
The following is the graph of
y=x%5E2
graph%28500%2C500%2C-10%2C10%2C-10%2C10%2Cx%2Ax%29
.
The following is the graph of
y=x%5E2%2Bx-6
graph%28500%2C500%2C-10%2C10%2C-10%2C10%2Cx%2Ax%2Bx-6%29
.
The following is the graph of
y+=+x%5E3
graph%28500%2C500%2C-10%2C10%2C-10%2C10%2Cx%2Ax%2Ax%29
.
Notice that the number of curves (or changes in direction) is one less than the power of x.

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
A nonlinear equation is not necessarily something raised to a power; it is simply an equation that is not represented by a line.

In addition to polynomial curves, the following functions are non-linear:
Trigonometric function
f(x) = sin(x)
graph%28200%2C200%2C-10%2C10%2C-10%2C10%2C+sin%28x%29%29
f(x) = tan(x)
graph%28200%2C200%2C-10%2C10%2C-10%2C10%2C+tan%28x%29%29

Logarithmic or exponential function
f(x) = ln x
graph%28200%2C200%2C-10%2C10%2C-10%2C10%2C+ln%28x%29%29

Of course there are countless other examples.