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for g(x) = [ 7x - 1] + 8 evaluate each of the following

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1 Answer

Hi Keith;
g(x) = [ 7x - 1] + 8
 
a. g(-1)
g(-1) = {[(7)(-1)]-1}+8
g(-1)=(-7-1)+8
g(-1)=-8+8
g(-1)=0

b. g(b)
g(b) = [ 7b - 1] + 8

c. g(x^3)
g(x3) = [ 7x3 - 1] + 8
g(x3)=7x3-1+8
g(x3)=7x3+7

d. g(x - 7)
g(x-7) = {[(7)(x-7)]-1}+8
g(x-7)=7x-49-1+8
g(x-7)=7x+56