If f(x) = x^{2} + 5, find the following.

a. f(-4)

b. f(1/2)

c. f(b)

f(x) = x^2 + 5

f(-1) = (-1)^2 + 5 = 1 + 5 = 6

f(1/2) = (1/2)^2 + 5 = 1/4 + 5 = 5.25 or 5 and 1/4

f(b) = b^2 + 5

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