Question 119518
#1




Let's evaluate {{{f(-2)}}}



{{{f(x)=9+1x}}} Start with the given function.



{{{f(-2)=9+1(-2)}}} Plug in {{{x=-2}}}. In other words, replace each x with -2.



{{{f(-2)=9+-2}}} Multiply 1 and -2 to get  -2



{{{f(-2)=7}}} Now combine like terms



-----------Now let's evaluate another value---------



Let's evaluate {{{f(0)}}}



{{{f(x)=9+1x}}} Start with the given function.



{{{f(0)=9+1(0)}}} Plug in {{{x=0}}}. In other words, replace each x with 0.



{{{f(0)=9+0}}} Multiply 1 and 0 to get  0



{{{f(0)=9}}} Now combine like terms



-----------Now let's evaluate another value---------



Let's evaluate {{{f(5)}}}



{{{f(x)=9+1x}}} Start with the given function.



{{{f(5)=9+1(5)}}} Plug in {{{x=5}}}. In other words, replace each x with 5.



{{{f(5)=9+5}}} Multiply 1 and 5 to get  5



{{{f(5)=14}}} Now combine like terms




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#2





Let's evaluate {{{f(-2)}}}



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



{{{f(-2)=(-2)^2-1}}} Plug in {{{x=-2}}}. In other words, replace each x with -2.



{{{f(-2)=(4)-1}}} Evaluate {{{(-2)^2}}} to get 4.



{{{f(-2)=3}}} Now combine like terms



-----------Now let's evaluate another value---------



Let's evaluate {{{f(0)}}}



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



{{{f(0)=(0)^2-1}}} Plug in {{{x=0}}}. In other words, replace each x with 0.



{{{f(0)=(0)-1}}} Evaluate {{{(0)^2}}} to get 0.



{{{f(0)=-1}}} Now combine like terms



-----------Now let's evaluate another value---------



Let's evaluate {{{f(5)}}}



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



{{{f(5)=(5)^2-1}}} Plug in {{{x=5}}}. In other words, replace each x with 5.



{{{f(5)=(25)-1}}} Evaluate {{{(5)^2}}} to get 25.



{{{f(5)=24}}} Now combine like terms