Question 386990
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Hi
Finding f(2) is the result of simply substituting the value of 2 for x
a) f(2) = - x + 3 = 1
b) f(2) = 2x^3 - 7x^2 + 8 = 16 -28 +8 = -4
c) f(x) = |x + 3| - 9 = 5 - 9 = -4

(note: absolute value sign is 'uppercase' \ on the key board)