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Unit 3 Practice Test Study Guide

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					                                      Unit 3 Practice Test Study Guide



1. Is this graph a function? Explain your answer.




2. t(x)= 3|x| + 7; What is the value of t(-2)?




3. f(x) = -4|x-6| + 1; What is the vertex of the graph of f(x)?




4. f(x)= |x-2|; What is the range of f(x)?
5. f(x)= x2 + 2; g(x)= x – 5

Find (f + g)(x)?




6. f(x) 3x -5; g(x)= 2x2

Find (f o g)(x)?




7. f(x)= 4x – 5; g(x) = x -2

Find (g o f) (3)?




8. f(x) = 5x -3; What is the value of f-1(-2)?
9. What graph results when the graph of f(x) = -|x| is shifted 3 units upward?




10. What is the domain and range of the graph below?

				
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posted:10/16/2011
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