reine0805 reine0805

25-05-2018
Mathematics

contestada

what is f(3) if f(x) =2x+6

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cchikoo cchikoo

25-05-2018

f(3) = 2(3)+6
f(3)= 6+6
f(3)=12

Hope this helps!

Answer Link

25-05-2018

Replace f(x) with y
Y=2x-6

Interchange the variables
X=2y-6

Solve for y
Y=3+x/2

F to the negative 1st power (x)=3+x/2

Answer Link

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