Nonlinear

The rate of change is NOT constant; the y value increases or decreases by a different number each time

As the beam length increase by 1, the number of rods increased by 6, then 8, then 10 etc.

The graph will be a curve

The equation had an exponent in

You cannot find the slope since it changes by different amounts!

Text Box: Nonlinear
The rate of change is NOT constant; the y value increases or decreases by a different number each time
As the beam length increase by 1, the number of rods increased by 6, then 8, then 10 etc. 
The graph will be a curve
The equation had an exponent in
You cannot find the slope since it changes by different amounts!

Linear

The rate of change is constant; the y value increases or decreases by a constant (the same) number each time

As the beam length increased by 1, the number of rods increased by 4

The graph will be a straight line

The equation will be in the form y = mx + b

You can find the slope since it has constant change

Text Box: Linear
The rate of change is constant; the y value increases or decreases by a constant (the same) number each time
As the beam length increased by 1, the number of rods increased by 4
The graph will be a straight line
The equation will be in the form y = mx + b 
You can find the slope since it has constant change 
Text Box: Linear vs. Nonlinear Relationships

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