IXL - Identify linear and exponential functions from tables (Algebra 1 practice)

Is this function linear or exponential?

linear

exponential

ref_doc_title.

Learn with an example

Is this function linear or exponential?

linear

exponential

You can determine if a function is linear or exponential by looking at the pattern of

-values.

Since the

-values

in the table are consecutive, you can compare successive

-values

to determine which type of function the table describes.

You can test whether a function is linear by finding the differences between successive

-values,

which are called the first

differences.

If the first differences are all equal, the function is linear.

Find the first differences in the table.

Since the first differences are all

–

the function is linear.

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