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find values of x when f(x) is given

Refer to the graph of the function f in the following figure.

Find the value of x, where x is an integer, corresponding to the point on the graph of f located at a height of 1 unit from the x-axis.

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Please see the attached file for detailed solution.

First draw a horizontal line at y = 1 (red). All points on this line are 1 unit from x-axis.
Secondly, find the intersection points of the ...

Solution Summary

The solution explains how to find corresponding values of x when the function f(x) is equal to 1 or -1.

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