Identify linear equations

A function whose graph is a straight line is a linear function.

The graph of a nonlinear function is not a straight line.

Learn with an example

  • Linear
  • Non-linear


To determine whether the function is linear or nonlinear, see whether the graph is a straight line.

The graph is a straight line.

So, the function is linear.

  • Linear
  • Non-linear

To determine whether the function is linear or nonlinear, see whether the graph is a straight line.

The graph is a straight line.

So, the function is linear.

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