Suppose f is a differential function of x and y, and g(r, s) = f(4r - s, s- 7r). Use the table of values below to calculate the given expressions and enter them into the given variable. f 8 fx fy (25, –7) 7 4 1 8 (8, 7) 4 7 6 2 1) g,(8,7) into g1 2) g,(8,7) into g2

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