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MATH8 TPR5 8th Grade Math – Algebra I Test Prep and Review Assignment # 5 Due Date: Friday, October 17, 2014 Name:________________________________________ Class 8.1 or 8.2 QUESTION Question #1:Expain! Susan plans to visit an amusement park where she must pay for admission and purchase tickets to go on the rides. Susan wants to find the total cost for a day at the amusement park. She wrote the equation c = 1.5x + 12 to predict c, the total cost for a day at the amusement park. What could the number 12 represent in Susan’s equation: A. The number of rides B. The cost of admission C. The cost of each ticket Explain why you think your answer is correct: D. The number of tickets Question #2: The table to the right shows the cost of different numbers of goldfish at a pet store. The cost is a linear function of the number of goldfish. Which statement describes the rate of change (slope) of this function? A. B. C. D. COST OF GOLDFISH Number Cost of Goldfish 5 $1.50 10 $3.00 15 $4.50 20 $6.00 The cost increases $0.30 each time 1 goldfish is added. The cost increased $1.50 each time 1 goldfish is added. The cost increases $3:00 each time 5 goldfish are added. The cost increases $6.00 each time 5 goldfish are added. Question #3: A. b = 39 + 10 In 10 years, Brendan will be 39 years old. Let b represent Brendan’s age today. Which equation can be used to find b? B. b – 10 = 39 C. b + 10 = 39 D. 10b = 39 MATH8 TPR5 Question #4: Show your work! Answer #4 Circle A and Circle B are identical circles. The Radius of Circle A is x + 4 The Diameter of Circle B is 4x What is the area of each circle? Express your answer in terms of π Hint, first think of how you can solve for the value of x. Question #5: This question requires graph paper and a graph! Answer #5: The vertices of a quadrilateral are A(-5, 3), B(2,2), C(4, -3) and D(-2,- 2) Plot the points and connect the vertices. Using your graph, find the slope of each side of the quadrilateral. Leave as fractions Slope of side AB: Slope of side BC: Slope of side CD: Slope of side DA: Is the quadrilateral a parallelogram? Justify your answer. Total Score out of 10: Test Tracker Submitted: Yes_______No______ Bonus: For question #5, can you move just one point to create a parallelogram. If so, which point, and to where, and why is it a parallelogram? If not, why?