Question

Is the function linear or nonlinear? If linear, state the constant rate of change.

Linear, 1


Linear, 2


Nonlinear


Linear, -2

Answer 1

Nonlinear

Explanation:

You can see that at first, when x goes up by 2 y goes down by 2, but then after that x goes up by 2 and y goes down by 3, meaning it won't be a line because it goes down by different amounts.

Answer 2

Nonlinear because the first differences are all different