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# ElementaryAlgebra MATH0000A

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This 2 page Class Notes was uploaded by Aileen Davis on Tuesday October 20, 2015. The Class Notes belongs to MATH0000A at Sierra College taught by DebraHill in Fall. Since its upload, it has received 11 views. For similar materials see /class/225373/math0000a-sierra-college in Mathematics (M) at Sierra College.

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Date Created: 10/20/15

MATH A UNIT 2 REVIEW T urn this in with the homework assignment Show work on separate paper PART 1 SHOW YOUR WORK CIRCLE YOUR ANSWERS 1 Which of the following are the solutions of the equation y x l See section 41 a 3 1 b c 2 Which of the following are the solutions of the equation y gx 3 See section 41 1 2 3 63 15 d e 0 gt145 gt15sz 0 4 3 Complete the tables below Plot the resulting data and connect the points See section 41 g h x 3 2 1 0 1 x 3 2 1 0 1 y 2x1 ylx2 2 4 Graph each equation See section 42 1 y3 J x 3 k y10 PART 2 SHOW YOUR WORK CIRCLE YOURANSWERS 1 Sketch the following equations using intercepts Label the x intercept and y intercept See section 42 a 3x2y12 b 4x7y 28 c 2x 5y 10 d 2x3y 6 2 Determine the slope of the line that goes through each pair of points If the slope is undefmed so state See section 43 e 2 1 2 7 1 1 5 3 5 g 7 1 5 0 3 Do the following problems from the textbook See section 43 Page 254 12 14 16 18 20 22 Created on 07152008 PART 3 SHOW YOUR WORK CIRCLE YOUR ANSWERS 1 N Determine if the lines through each pair of points are parallel perpendicular or neither See section 43 a Line 1 2 4 and 6 1 Line 2 3 1 and 1 2 b Line 1 1 6 and 2 6 Line 2 8 1 and 4 2 c Line 1 3 2 and2 2 Line2 3 2 and1 3 Find the slope and the coordinates of the y intercept for each line Then sketch the graph of each line using the slope and y intercept Label at least two points on each graph See section 44 d y x 1 e y 2x 5 f x2y8 g 5x 2y 6 h y 3x i 3x2y6 Do the following problems from the textbook writing your answer in slope intercept form See section 45 Page 270 4 6 14 15 PART 4 SHOW YOUR WORK CIRCLE YOURANSWERS 1 N 3 Write an equation of a line going through the given points Write in slope intercept form See section 45 a 3 0 0 6 b 4s 44 c 1 2 42 Do the following word problems from the textbook See section 43 d Page 255 46 e Page 286 33 The formula y 50x 75 models the cost to hire a plumber where y is in dollars and x is the number of hours the plumber works See sections 43 44 1 Find the cost for the plumber to come and work 3 hours g What is the slope of this equation Describe the meaning of the slope in the model in terms of a rate of change h What is the yintercept in this equation What does it represent in this situation Sketch the graph of the linear inequality See section 46 i yZ x 1 j ylt x2 k 2x3ygt6 l 3x 2ygt4 Created on 07152008

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