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The figure shows the graphs of the functions y = f(x) and y = g(x). The four indicated points all have integer coordinates. If g(x) = k • f(x), what is the value of k? |
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Look at what is happening to the y-values between the two graphs.
From the y-value in f(x) going from 1 to -3 in g(x) and the y-value in f(x) going from -1 to 3 in g(x) Think: what is being multiplied by the f(x) value in order to obtain the g(x) value? It is -3 Therefore g(x) = -3 • f(x) k = -3 Ask Algebra House |
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