Functions f,g

Find g(1) if g(x) = 3x - x2

Find f(5) if f(x) = x + 1/2

Correct result:

g =  2
f =  5.5

Solution:

x=1 g=3⋅ x−x2=3⋅ 1−12=2
x=5 f=x+1/2=5+1/2=112=5.5

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