1. This document contains 5 multiple choice questions about functions and their compositions. 2. The questions involve evaluating functions, finding the composition of two functions, and determining the result of adding two functions together. 3. This summary provides a high-level overview of the key elements and purpose contained within the document.

1. Match (m31202) By Prapat Meeaime No.9 M.4/1 Present Teacher Saweena Obsuwan

2. 1.If f(x)=3x-2find f(3) a. 12 b. 7 c. 14 d. 15

3. 2. Given A={1,2,3} and B={4,5} find A*B a. {(1,5),(1,4),(2,5),(3,5)} b. {(1,5),(1,4),(2,4),(3,1)} c. {(1,4),(1,5),(2,4),(2,5),(3,4),(3,5)} d.{(1,4),(3,5)}

4. 3.Given f(x)=3x 2 ,g(x)=x-5 find f+g a.3x 2 +x-5 b. x 2 + x + 2 c. 3x 2 – x –5 d. x 2 – x + 5

5. 4.Given f(x)=3x,g(x)=3x 2 -2 find the function of (gof)(x) a. 27x 2 -2 b. 28x 2 -2 c. 27x 2 +2 d. 28x 2 +2

6. 5. 4.Given f(x)=2x 2 -1,g(x)=2x find the function of (fog)(x) a. 8x 2 +1 b. 4x 2 -1 c. 8x 2 -1 d. 4x 2 +2