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Linear or nonlinear

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The question

y = x/5 + 20

Linear or nonlinear?

y = x/5 + 20

y = x/5 + 20
y = x/5 + 20
Linear or nonlinear?Linear
  1. Linear means the graph is a straight line. If x is only multiplied by a number and added to, it is a line.
  2. Look at what happens to x: it is multiplied by a number, and a number is added or taken away. Nothing else is done to it.
  3. That is exactly the mx + b shape — dividing by 5 is multiplying by a number, so the steps in y stay equal. It is a line.

How it works.

  1. 01

    Linear means the graph is a straight line. If x is only multiplied by a number and added to, it is a line.

  2. 02

    Look at what happens to x: it is multiplied by a number, and a number is added or taken away. Nothing else is done to it.

  3. 03

    That is exactly the mx + b shape — dividing by 5 is multiplying by a number, so the steps in y stay equal. It is a line.

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