YouTube user NotesCollegeAlgebra teaches you how to interpret a graph. You will learn how to read it and extract information. You go to the graph to see that f(4)=2. f(1.5)=2, so it's positive. You then have the question: For what xvalues is f(x)<0? You go to the graph and see that you come up with (5,3). The xint is (3,0) (4,0). The yint is (0,4). The domain is (5,4) and the range is (4,4). You then have the question: how often does y=7/5 intercept the graph? The answer is 4 times. The last question is for what values of x does f(x)=1? It's (2.6), (1, 3).
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