1. Simplify the expression 5 · (15a). A. 15a - 5 B. 15a + 5 C. 15a5 D. 75a Hint 2. Solve the equation x - = A. B. -1 C. 1 D. Hint 3. The product of -1 and any number is called the number's ______. A. closure product B. rational inverse C. factor term D. additive inverse Hint 4. Solve 5 - = A. 15 B. -5 C. 5 D. -15 Hint 5. A linear function that can be written in the form y = kx, where k0, is called a(n)_______. A. functional variation B. equivalent variation C. variable variation D. direct variation Hint 6. The slope of a line is ______. A. the ratio of the horizontal change to the vertical change B. the distance of the line from the y-axis C. the distance of the line from the x-axis D. the ratio of the vertical change to the horizontal change Hint 7. Write an equation in slope–intercept form of the line passing through points at (1, –1) and (-3, 3). A. y = 1 B. y = –1 C. y = –x D. y = –x + 1 Hint 8. The graphs of the two equations y = 2x + 5 and are _______. A. neither parallel nor perpendicular B. parallel C. perpendicular D. the same line Hint 9. Write 3x3y5 as a multiplication expression. A. 3 · 3 · x · 5 · y B. 3 · x · x · x · y · y · y · y · y C. (xy2)3 D. 2(3x3y5) Hint 10. You can divide powers with the same base by _____. A. adding the exponents B. subtracting the exponents C. multiplying the exponents D. dividing the exponents Hint 11. The rule for negative exponents states that Which statement is not a correct use of this rule? A. B. 10-1 = 1 C. D. Hint 12. The measures of three sides of a triangle are given. Determine which triangle is a right triangle. A. 1 ft, 2 ft, and 2 ft B. 2 m, 3 m, and 4 m C. 16 in., 18 in., and 20 in. D. 3 cm, 4 cm, and 5 cm Hint 13. Which graph shows the points from the table? A. B. C. D. Hint 14. Evaluate –2x(-y) if x = -2 and y = 2. A. 6 B. 8 C. -8 D. -6 Hint 15. Hute has made the garden shown. Find the value of x if the perimeter of the garden is 8 yd. A. 4 B. 2 C. 1 D. 3 Hint 16. Convert 42 inches to feet. A. 504 ft B. 7 ft C. 3.5 ft D. 18 ft Hint 17. Find the length of the leg of the right triangle. A. 17.7 cm B. 5 cm C. 12.5 cm D. 4 cm Hint 18. The volume of a rectangular box is 30x3 – 11x2 – 2x cubic units. What are the possible dimensions of the box? A. 2x by (5x – 1) by (6x + 2) B. x by (2x – 1) by (15x + 2) C. x by (3x – 2) by (10x + 1) D. 2x by (x – 2) by (30x + 1) Hint 19. Which is the graph of y = 3x – 4? A. B. C. D. Hint 20. Which graph represents 2 l < 5. A. B. C. D. Hint