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The graph of y = f(x) is shown below, with one unit between grid lines. Assume f(x) is defined only on the domain shown. What is the sum of all integers c for which the equation f(x) = c has exactly 6 solutions?

 

 Oct 13, 2020
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Only at c = 0   is there 6 solutions

 

the only place an integer line of  'y' crosses the graph in six places is at y = 0

 
 Oct 13, 2020

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