Precalculus Examples

Find the Average Rate of Change table[[x,0],[1,2],[3,4],[f(x),27],[9,3],[1,1/3]]
Step 1
Choose the starting and ending values from the table.
Step 2
To find the average rate of change, find the slope.
Step 3
Slope is equal to the change in over the change in , or rise over run.
Step 4
The change in is equal to the difference in x-coordinates (also called run), and the change in is equal to the difference in y-coordinates (also called rise).
Step 5
Substitute in the values of and into the equation to find the slope.
Step 6
Simplify.
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Step 6.1
Multiply by .
Step 6.2
Subtract from .
Step 6.3
The expression contains a division by . The expression is undefined.
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