function notation

step 1: write F(x): f is the name and x is the input

step 2: get a equation 7(x) + 6: the equation is the stuff you use to get the out put

step 3: get a number for x: lets use 4= F(4)= 7(4)+6

step 4: multiply the 7 and the 4= 7(4)= 28

step 5: add 6 to what you times= 28+6= 34  F(4)=34