# How do you find #(fog)(10)# given #f(x)=-9x-9# and #g(x)=sqrt(x-9)#?

##### 1 Answer

Apr 12, 2017

#### Explanation:

**substituting #g(x)# in place of #x# in #f(x)#**.

hence in this case,

**Another** way to do it would have been to first find