Question 117574
Is your function {{{x^2-7x+10}}}?  If it is, then....




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



{{{f(x)=x^2-7x+10}}} Start with the given function.



{{{f(0)=(0)^2-7(0)+10}}} Plug in {{{x=0}}}. In other words, replace each x with 0.



{{{f(0)=(0)-7(0)+10}}} Evaluate {{{(0)^2}}} to get 0.



{{{f(0)=(0)+0+10}}} Multiply -7 and 0 to get  0



{{{f(0)=10}}} Now combine like terms



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



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



{{{f(x)=x^2-7x+10}}} Start with the given function.



{{{f(5)=(5)^2-7(5)+10}}} Plug in {{{x=5}}}. In other words, replace each x with 5.



{{{f(5)=(25)-7(5)+10}}} Evaluate {{{(5)^2}}} to get 25.



{{{f(5)=(25)-35+10}}} Multiply -7 and 5 to get  -35



{{{f(5)=0}}} Now combine like terms



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



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



{{{f(x)=x^2-7x+10}}} Start with the given function.



{{{f(-2)=(-2)^2-7(-2)+10}}} Plug in {{{x=-2}}}. In other words, replace each x with -2.



{{{f(-2)=(4)-7(-2)+10}}} Evaluate {{{(-2)^2}}} to get 4.



{{{f(-2)=(4)+14+10}}} Multiply -7 and -2 to get  14



{{{f(-2)=28}}} Now combine like terms