SOLUTION: evaluate the function f(x)= 7x+7 at the given values if independent variable and simplify.. a. f(x+5) b. f(-x) thank you so much

Algebra ->  Test -> SOLUTION: evaluate the function f(x)= 7x+7 at the given values if independent variable and simplify.. a. f(x+5) b. f(-x) thank you so much      Log On


   

Question 1092203: evaluate the function f(x)= 7x+7 at the given values if independent variable and simplify..
a. f(x+5)
b. f(-x)

thank you so much
Answer by ikleyn(52775) About Me  (Show Source):
You can put this solution on YOUR website!
.
evaluate the function f(x)= 7x+7 at the given values if independent variable and simplify.. 

a. f(x+5) = 7*(x+5) + 7 = (7x + 35) + 7 = 7x + (35+7) = 7x + 42.

b. f(-x) = 7*(-x) + 7 = -7x + 7.