Question 170855
I'll do the first one to get you going in the right direction


a) 


{{{f(x)=e^(-2x) + 1}}} Start with the given function



{{{f(-1)=e^(-2(-1)) + 1}}} Plug in {{{x=-1}}}



{{{f(-1)=e^(2) + 1}}} Multiply



{{{f(-1)=7.389 + 1}}} Square "e" (which is approximately 2.718...) to get 7.389



{{{f(-1)=8.389}}} Add