Question 475236
Finding f(-4)


{{{f(x)=x+10}}} Start with the given equation.



{{{f(-4)=-4+10}}} Plug in {{{x=-4}}}.



{{{f(-4)=6}}} Combine like terms.


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Finding f(x+8)



{{{f(x+8)=x+8+10}}} Replace EVERY x with x+8



{{{f(x+8)=x+18}}} Combine like terms.