Answer
Linear function: The $y$ values are obtained by adding or suntracting the next in an equally spaced x values.
Exponential: One y-value to the next by multiplying by the same factor each time if the x values are evenly spaced.
Work Step by Step
A linear function is a function in which we get from one y-value to the next by adding (or subtracting), if the $x$ values are equally spaced.
On the other hand, an exponential function is a function in which we get from one y-value to the next by multiplying by the same factor each time if the $x$ values are evenly spaced.
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