SOLUTION: f(x)=9^2+9x+10 f(3)=9( )^2 +9(3)+10 explain how you got the answer.

Algebra ->  Coordinate-system -> SOLUTION: f(x)=9^2+9x+10 f(3)=9( )^2 +9(3)+10 explain how you got the answer.       Log On


   

Question 180771: f(x)=9^2+9x+10
f(3)=9( )^2 +9(3)+10
explain how you got the answer.

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29=9x%5E2%2B9x%2B10 Start with the given equation.


f%283%29=9%283%29%5E2%2B9%283%29%2B10 Plug in x=3. In other words, replace every "x" with 3.


f%283%29=9%289%29%2B9%283%29%2B10 Square 3 to get 9.


f%283%29=81%2B9%283%29%2B10 Multiply 9 and 9 to get 81.


f%283%29=81%2B27%2B10 Multiply 9 and 3 to get 27.


f%283%29=118 Add.



So the answer is f%283%29=118