Question

Which table represents a nonlinear function?

Answer 1

Answer: The second answer choice

Explanation:

First table:

x goes up at constant rate (+1)

y goes up at constant rate (+8)

Second table:

x goes up at constant rate (+1)

y does not, skipping from (+3) to (+1.5)

Third table:

x goes up at constant rate (+1)

y goes down at constant rate (-3)

As long as the change is proportional to each other is linear.