1. Which letter has rotational symmetry? A. C B. O C. E D. M Hint 2. Which equation is the slope-intercept form of the equation of the line that passes through (1, 2) and is parallel to 4x - 2y = 6? A. y = -2x + 1 B. y = 4x + 3 C. y = 2x D. Hint 3. Write an inequality for the sentence three times a number is less than 45. A. 3x 45 B. 3 + x < 45 C. 3x > 45 D. 3x < 45 Hint 4. Use elimination to solve the system of equations shown below.2x - 4y = -53x + 4y = -15 A. B. C. D. Hint 5. Simplify (3a4b5c)4. A. 81a16b20c4 B. 7a16b20c4 C. 12a8b9c5 D. 3a16b20c4 Hint 6. What is the slope of the line through the points A(-3, 4) and B(2, -1)? A. 1 B. -1 C. D. -3 Hint 7. Determine the slope of the line containing the points P(-7, -8) and Q(3, 0). A. -2 B. 2 C. D. Hint 8. has vertices H(-3, -1), I(-2, -4), and J(-4, -4). Which graph shows the reflection image of the triangle over the y-axis? A. B. C. D. Hint 9. Find the situation that is linear but does not have direct variation. A. At the beginning of the summer, Dina had \$200 in the bank. She started a job and deposited \$10 per week. B. At the beginning of the summer, Dina had \$200 in the bank. She withdrew \$30 to buy a new pair of shorts. C. At the beginning of the summer, Dina had \$0 in the bank. She earned \$50 mowing lawns the previous week and deposited the money in the bank. D. At the beginning of the summer, Dina had \$0 in the bank. She started a job and deposited \$10 per week. Hint 10. Pam's mother gives Pam \$20 each week for lunch to be bought at the school cafeteria. Lunches cost \$4 per day. Draw a graph showing the amount Pam has left decreasing very slowly. Suppose you graph the time in days on the horizontal axis and the amount Pam has left on the vertical axis. A. B. C. D. Hint 11. What is the equation of a line that has a slope of 4 and passes through (6, 3)? A. y = 4x – 27 B. y = 4x – 3 C. y = 4x – 21 D. y = 4x – 7 Hint 12. What is the equation of a line that has a slope of –1 and passes through (–2, 0)? A. y = –x – 1 B. y = –x – 2 C. y = –2x + 1 D. y = –x + 2 Hint 13. What is the lowest point on the graph of y = x2 + 2? A. (2, 0) B. (0, 2) C. (0, 0) D. (0, –2) Hint 14. Suppose your parents buy a new car for \$21,000. What will the value of the car be in 5 years if the car depreciates by 10% each year.? A. \$11,160 B. \$10,044 C. \$12,400 D. \$15,309 Hint 15. Find the table that does not represent an exponential equation. A. B. C. D. Hint 16. Find a solution to the equation by doing the same thing to both sides.8p + 14 = 2p – 22 A. p = –1 B. p = 1 C. p = 6 D. p = –6 Hint 17. The sum of three consecutive even numbers is 54. Find the three numbers. A. 16, 18, 20 B. 15, 16, 17 C. 16, 17, 18 D. 18, 19, 20 Hint 18. John and Margaret have both ridden on the roller coaster called The Scream. Margaret has ridden it eight more than three times the number than John has. She also has ridden it five times the number John has. How many times has John ridden The Scream? A. 3 B. 6 C. 20 D. 4 Hint 19. Use substitution or elimination to solve the system of equations.x + 2y = 6x – 3y = –4 A. (–2, –2) B. (2, –2) C. (–2, 2) D. (2, 2) Hint 20. Find the angle of rotation for the following figure. A. –90° B. 30° C. –30° D. 150° Hint