3 years ago

Let f(x) = x^2 +5 and G (x) = X+5/x. Find (gof)(-3)

1 answer:

5 0

(gof)(-3) means the composition of two functions at x = -3.

(gof)(-3) can also be expressed as g(f(-3))

So, first we find f(-3)

f(x) = x² + 5

f(-3) = 9 + 5 = 14

g(f(-3)) = g(14)

g(14) = (14+5)/14 = 19/14

Thus, option C gives the correct answer

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