Posted by Keisha on .
The functions f and g are defined by:
f:x 3x+1
g:x 9x
Determine an expression for the function gf(x)
3(9x)+1
273x+1

Math (is this correct) 
bobpursley,
yes, but why not combine the 27 and 1?

Math (is this correct) 
keli,
3(9x)+1=273x+1