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Name:_______________________________ Math ____ Moving Straight Ahead Unit Test Study Guide 1. a. Does it matter which two points you choose on a straight line to find the slope of the line? Use the graph below to help EXPLAIN your answer. b. Write an equation for the line below. 2. Solve the following equations for x. a. 30x + 2 = 62 b. 12x – 15 = 2x + 55 c. 4(2x + 3) = 27 d. 7x + 10 = 5x – 3 3. Match the table (A-D) with the graph (E-H) and the equation (J-M). List your results below in four groups. Group 1: Group 2: Group 3: Group 4: A x 0 1 2 3 4 y 1 4 7 10 13 B x 0 1 2 3 4 C y -2 -5 -8 -11 -14 x 0 1 2 3 4 E. F. G. H. D. y 0 -3 -6 -9 -12 J. y = -3x K. y = -3x – 2 L. y = -3 M. y = 3x + 1 x 0 1 2 3 4 y -3 -3 -3 -3 -3 4. A student studying bike rental costs enters the rule y = 20x + 100 into the calculator and produces this graph. He has highlighted one point on the graph. A. What question could the student be trying to answer? ● B. Write the question for part (A) as an equation that could be used to find the answer. 5. A new fitness center has opened. There are two membership plans: Plan A - $10.00 per visit. Plan B - $20 per month + $5.00 per visit. a. Make a table that shows how much 10 visits in one month would cost for each membership plan. b. Graph both plans on this grid. c. Write an equation for each membership plan. Plan A:_____________________ Plan B:_______________________ d. What is the slope of each line of the equations in part c? Slope Plan A =______ Slope Plan B =______ e. What information does the slope of each line represent in this problem? f. Explain how to find the slope from: A Table: A Graph: An Equation: g. What information does the y-intercept of each line represent in this problem? Plan A: Plan B: