Question 90799
Question:


evalute each function for the value specified:
f(x)= x (to the second power) - 7x +10, 
find (a) f(0), (b)f(5), and (c) f(-2)


Answer:


f(x) = {{{x^2 - 7x + 10 }}}



To find f(0), what you have to do is replace x by 0 in the given function.


==> f(0) = {{{0^2 - 7*0 + 10 }}}



==> f(0) = 0 - 0 + 10



==> f(0) = 10




Similarly...



f(5) = {{{5^2 - 7*5 + 10 }}}



f(5) = {{{25 - 30 + 10 }}}


f(5) = 5




f(-2) = {{{(-2)^2 - 7*(-2) + 10 }}}



==> f(-2) = {{{4  + 14  + 10 }}}



==> f(-2) = 28





Hope you found the explanation useful.



Praseena.