if f(x)=3x-1 and g(x)=4x+3, find and simplify the composition g[f(x)]?

3 ⤊

2007-10-18 11:46:37 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

g[f(x)] = 4(3x-1) + 3
=12x-4+3
=12x-1

2007-10-18 11:56:26 · answer #1 · answered by ★→Damian←★ 4 · 1⤊ 0⤋

g[f(x)]is obtained by replacing the x in g(x) with 3x-1. This gives you 4[3x-1] +3, which simplifies to 12x-4+3, which simplifies to 12x-1.

2007-10-18 18:58:38 · answer #2 · answered by zee_prime 6 · 0⤊ 0⤋

You literally apply the function f(x) into g(x): g[f(x)] = 4(3x-1) + 3 and then simplify that expression.

2007-10-18 18:53:35 · answer #3 · answered by Mathsorcerer 7 · 1⤊ 0⤋

If f(x) = 4x + 3 and g(x) = 3x, evaluate f(x)*g(x) fot x=-1/2

2014-09-11 14:08:20 · answer #4 · answered by Courtney Madewell 1 · 0⤊ 0⤋

f(x)= 3x-1
g(3x-1)= 4(3x-1)+3
12x-4+3
12x-1

2007-10-18 18:54:46 · answer #5 · answered by . 4 · 1⤊ 0⤋