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Monday, March 28, 2011

example

f(x) = 4x + 7x, g(x) = 7y + 2x

f(10) = 4(10) + 7(10), f(10) = 40 + 70, f(10) = 110

g(7) = 7(7) + 2(10) = 49 + 20 = 69

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