To determine if a graphed function is linear or nonlinear, you'll want to look at the shape of the graph:
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A linear function will create a straight line when graphed. The equation will typically be in the form \(y = mx + b\), where \(m\) is the slope and \(b\) is the y-intercept.
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A nonlinear function will create a curve or any shape that is not a straight line. This includes parabolas, circles, exponential graphs, etc.
If you can provide a description of the graph or the characteristics you observe, I can help you determine if the graphed function is linear or nonlinear.
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