Question

What does it mean when it says find f(9) given that f(x)= x^2+10

Answer 1

it means the value of the function when x=9

just replace every x with a 9 and remember order of operations

`f(x)=x^2+10`

`f(9)=(9)^2+10`

`f(9)=81+10`

`f(9)=91`

Answer 2

f(9) means let x=9 and substitute into f(x)

f(9) = 9^2 +10

f(9) = 81+10

f(9) = 91