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MPM 1D1 FINAL EXAM REVIEW – Units 2, 5 & 6 Name:____________________ Date:_____________________ Instructions: Refer to your notes to answer the following questions properly. Show all your work to guarantee full marks (unless otherwise stated). Unit #2: Graphing Relationships 2. The table shows the lengths of the tails and the shoulder heights for a group of dogs. Shoulder Height (cm) 66 42 33 30 41 62 65 39 Length of Tail (cm) 32 15 5 8 14 26 34 12 a) Draw a scatter plot of the data. b) Describe the relationship between the shoulder height of a dog and the length of its tail. 3. The table shows the population of a city from 1935 to 2005. Year 1935 1945 1955 1965 1975 1995 2005 Population (1000’s) 540 610 768 804 819 844 856 a) Make a labelled scatter plot of the data. b) Describe the trend in the population. c) Draw a line or curve of best fit. d) Estimate the population in 1950. 4. The table shows the population of a town. Year 1941 1951 1961 1971 1981 1991 2001 Population 6800 6690 6505 6003 5899 5542 5307 a) Make a scatter plot of the data. b) Describe the trend in the population. c) Estimate the town’s population in 2011. 5. a) Plot the following set of points on a grid. (1, 9), (9, 6), (5, 7), (3, 8), (4, 9), (2, 9), (6, 8), (8, 7), (7, 6), (8, 5) b) Draw a line or curve of best fit. c) Does the set of points have a linear relationship? 6. Write a story that could be represented by the graph. 7. Mark walks to his friend’s house. Partway there, he realizes he forgot a CD at home. He runs back home to pick up the CD, goes in his house to get the CD, then walks back to his friend’s house. Construct a distance-time graph to represent this situation. Unit #5: Linear Relations 1. Is the line y = -4x + 9 linear or non-linear? [1] 2. Is the line y = 5x2 – 11 linear or non-linear? [1] 3. What is the formula for determining the slope of a line? [1] 4. Calculate the slopes of the following line segments using the slope formula. a) M(6 , 4) N(11 , 9) [2] [2] b) Q(-5 , 2) R(7 , -4) 5. For each line, state the slope, the y-intercept, and the equation. a) m = _________ b = _________ Equation: [3] b) m = _________ b = _________ Equation: [3] 6. Graph the following equations using the slope and y-intercept method. Remember to label the graphs. a) y = 4x – 6 [4] b) y = -5 x + 8 3 [4] 7. State the slope and y-intercept for the following equations, and then graph. Remember to label the graphs. a) y = 3 x 4 [6] m = _________ b = _________ b) y = -5x [6] m = _________ b = _________ 8. State the slope and y-intercept for the following equations, and then graph. Remember to label the graphs. a) x = 2 [5] m = _________ b = _________ b) y = -7 [5] m = _________ b = _________ Unit #6: The Line Questions 9 - 11 are multiple choice. Circle the letter of the correct answer. 9. Parallel lines have: a) b) c) d) 10. Which of the following pairs of numbers are slopes of perpendicular line segments? a) 11. slopes which are reciprocals slopes which are negative reciprocals slopes which are equal equations which are identical 3 3 , 4 4 b) 3 4 , 4 3 c) 3 4 , 4 3 d) 3 3 , 4 4 A line segment which is parallel to the x-axis has a slope which is: a) positive b) negative c) 0 d) undefined [3] Full Solution 12. Write the equation of a line that is parallel to the y-axis and passes through the point (4, 7). [1] 13. Write each equation in the form y = mx + b. Identify the slope and y-intercept. a) x + y – 10 = 0 [2] [4] b) 10x – 5y + 30 = 0 14. Write each equation in standard form Ax + By + C = 0. b) y = 9x – 14 a) y = -2x + 7 [2] [3] 15. Determine the x and y-intercepts for the following equation. Then, graph the equation. Show your work. 9x – 2y = 18 x-intercept y-intercept [10] 16. Find the equation of the line: a) with a slope of m = -2 and passing through the point, P(4, 2). [5] 1 5 b) perpendicular to y x 4 and passing through (-2, -7). [4] 17. Find the equation of a line passing through the points A(1, 5) and B(4, -7). [7] 18. Solve the following linear system by graphing. 3x – y = 3 x+y=5 [9] 19. In order to reduce the amount of cash Stacey had in her cash register on Saturday, her manager took a bunch of $50 and $20 bills from her register and sent it to the cash office. The total amount of money the manager sent to the cash office was $900. a) Write an equation to model this situation. Introduce your variables with a “Let x be” statements. [3] b) Graph the equation using the intercepts. Remember to label the graphs. [10] 20. The table below relates the cost of hosting a wedding banquet with the number of people attending. Number of people Total cost 40 2200 54 2704 84 3784 What would the price be if there were 140 people attending? [5]