f(1/2)=3x-4
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is it : f(x) = 3x - 4, find f(1/2) ??
then:
f(1/2) = 3/2 - 4
= (3 - 8)/2 = -5/2
then:
f(1/2) = 3/2 - 4
= (3 - 8)/2 = -5/2
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Is it : f(x) = 3x - 4, find f(1/2) ??
Then f(x) = 3x - 4
so f(1/2) = (3*1) / 2 - 4 = 3 / 2 - 4 = (3 - 8) / 2 = - 5 / 2
Then f(x) = 3x - 4
so f(1/2) = (3*1) / 2 - 4 = 3 / 2 - 4 = (3 - 8) / 2 = - 5 / 2
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Plug 1/2 in for x.
f(1/2) = 3(1/2) - 4
f(1/2) = 3/2 - 4
f(1/2) = -2 1/2
f(1/2) = 3(1/2) - 4
f(1/2) = 3/2 - 4
f(1/2) = -2 1/2
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It is Function. Isn't it?