-12a2 + 9ab 21. Which number is equivalent to the expression ? Standard: A1.2.C* (Chapter 6) 22. When simplified, (2x2y3)4 equals : 8x6y7 8x8y12 16x6y7 16x8y12 Standard: A1.2.C* (Chapter 6) 23. The function f(x) contains ordered pairs of the form (x, y). f(x) = {(6, 5), (2, 3), (1, 4)}. What is the range of the function? a. {4} b. {1, 2, 3, 4, 5, 6} c. {1, 2, 6} d. {3, 4, 5} Standard: A1.3.A* (Chapter 7) 24. The ordered pairs in the sets below are of the form (x, y). In which set is y a function of x? a. {(1, -2), (1, 0), (1, 5), (1, 7)} b. {(1, 3), (2, 6), (3, 1), (6, 3)} Standard: A1.3.A* (Chapter 7) c. {(0, 3), (1, 4), (2, 4), (2, 8)} d. {(1, 3), (3, 1), (3, 4), (4, 3)} 25. Which of these pairs of the form (x, y), could not lie on the graph of a function of x? a. (1, 1) and (3, 1) b. (1, 1) and (1, 2) Standard: A1.3.A* (Chapter 7) c. (1, 1) and (2, 1) d.( 1, 1) and (2, 2) 26. What is the domain of the function in the graph?
-12a2 + 9ab 21. Which number is equivalent to the expression ? Standard: A1.2.C* (Chapter 6) 22. When simplified, (2x2y3)4 equals : 8x6y7 8x8y12 16x6y7 16x8y12 Standard: A1.2.C* (Chapter 6) 23. The function f(x) contains ordered pairs of the form (x, y). f(x) = {(6, 5), (2, 3), (1, 4)}. What is the range of the function? a. {4} b. {1, 2, 3, 4, 5, 6} c. {1, 2, 6} d. {3, 4, 5} Standard: A1.3.A* (Chapter 7) 24. The ordered pairs in the sets below are of the form (x, y). In which set is y a function of x? a. {(1, -2), (1, 0), (1, 5), (1, 7)} b. {(1, 3), (2, 6), (3, 1), (6, 3)} Standard: A1.3.A* (Chapter 7) c. {(0, 3), (1, 4), (2, 4), (2, 8)} d. {(1, 3), (3, 1), (3, 4), (4, 3)} 25. Which of these pairs of the form (x, y), could not lie on the graph of a function of x? a. (1, 1) and (3, 1) b. (1, 1) and (1, 2) Standard: A1.3.A* (Chapter 7) c. (1, 1) and (2, 1) d.( 1, 1) and (2, 2) 26. What is the domain of the function in the graph?