chapter 9 test

# chapter 9 test - Mat120 JACKY PETERSON MATH Test#1 Chapters...

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Mat120 - JACKY PETERSON - MATH Name_____________________________ Test #1 - Chapters 9 Score: _____________/ Class Hour:____________ Summer 2007 1. Use the order of operations to simplify the expression: 3(8 ! 6) + 3•8 3 i 6 ! 3 ( ) a . 19 9 b . 3 5 c . 19 15 d . 10 3 1.______(3) 2. a. Find the domain and range. {( 5, 8), ( 8, 2), ( -7, -2), ( -7, 9)} 2._______(3) A) domain = { 5, -7, 8, 3}; range = { 8, -2, 2, 9} B) domain = { 5, -7, 8, -13}; range = { 8, -2, 2, 9} C) domain = { 8, -2, 2, 9}; range = { 5, -7, 8} D) domain = { 5, -7, 8}; range = { 8, -2, 2, 9} b. Is the above set a function? b. Yes No (2) Given the function, find the indicated value. 3. Find f( 2) when f(x) = – 4x 2 + 3x + 4. 3._______(3) A) 26 B) 14 C) – 6 D) 2 4. Use the vertical line test to determine whether or not the graph is a graph of a function. A) Not a function B) Function 4._______(2)

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Mat 120 - Test #1 - Chapters 9 Page 2 5. Simplify each exponential expression below: a. 2 x 2 y 2 3 x ! 3 y ! 2 " # \$ % & 2 5a._______________(4) b, ! 12 a 2 b ! 3 c 4 ! 3 a ! 3 b ! 2 c ! 3 5b._______________(4) 6. Solve the following equations for x: a. 5 x ! (2 x + 2) = x + (3 x ! 4) 6a._______________(3) b. 3 x 2 = 5 x 3 + 1 b._______________(4)
Mat 120 - Test #1 - Chapters 9 Page 3 7. Find the domain of the following functions: (what can x ?) a. f(x) = 3x 2 – 2x + 3 ____________(3) b. f ( x ) = x + 2 5 x ! 1 ____________(3) 8.

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## This note was uploaded on 05/05/2008 for the course MAT 120/222/10 taught by Professor None during the Spring '08 term at ASU.

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chapter 9 test - Mat120 JACKY PETERSON MATH Test#1 Chapters...

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