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Mathematics 20 Online
OpenStudy (anonymous):

Based on the table below, how many real zeros are on the graph? x f(x) -3 -10 -2.5 -3.375 -2 0 -1.5 0.875 -1 0 -0.5 -1.875 0 -4 0.5 -5.625 1 -6 1.5 -4.375 2 0 2.5 7.875 3 20 3.5 37.125

OpenStudy (ybarrap):

How many times does f(x) change from positive to negative? The only way this can happen if if f(x) goes through zero.

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