Homework Help: Math (is this correct)

Posted by Keisha on Wednesday, September 9, 2009 at 12:43pm.

The functions f and g are defined by:
f:x 3x+1
g:x 9-x

Determine an expression for the function gf(x)
3(9-x)+1
27-3x+1

Math (is this correct) - bobpursley, Wednesday, September 9, 2009 at 12:55pm
yes, but why not combine the 27 and 1?

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