Let f(x)=2x−3 and g(f(x))=5−4x. Find g(4).
First , find f(4) then substitute THAT value into the g(x) formula ....
f(x) = 2x - 3 = 4
2x = 7
x = 7/2
g(4) = g(f(7/2)) = 5 - 4(7/2) = -9
+37167 
+1223 
