Let f(x) = 9x - 2 and g(x) = -x + 3, how do you find f(g(x))?
1 Answer
Feb 15, 2017
Explanation:
Substitute x = - x + 3, that is g(x) into f(x)
#f(g(x))=f(color(red)(-x+3))#
#color(white)(f(g(x)))=9(color(red)(-x+3))-2#
#color(white)(f(g(x)))=-9x+27-2#
#color(white)(f(g(x)))=-9x+25#
