Question 386990
 Find f(2) for each function. Show all work. Justify and explain your reasoning.
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Sub 2 for each x.
a) f(x) = - x + 3
f(2) = -2 + 3 
= 1
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b) f(x) = 2x^3 - 7x^2 + 8
f(2) = 2*2^3 - 7*2^2 + 8
= 16 - 28 + 8
= -4
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c) f(x) = abs(x + 3) - 9
f(2) = |2 + 3| - 9 = 5-9
f(2) = -4