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Which of the following set of ordered pairs is a function? {(-1, 1), (0, 3), (2, 7), (3, 9)} {(0, 1), (1, 3), (2, 7), (1, -2)} {(-1, 3), (0, 3), (-2, 5), (-1, 1)} {(2, 1), (2, 2), (2, 3), (2, 4)} Which table represents a function? -4 3 5 5 9 x x 3 3 2 1 1 2 2 y 10 12 10 15 y 7 6 3 5 9 3 5 6 x x 12 12 10 y 1 2 2 6 3 y f(x) = 3x2 - 2x + 5
What is the value of f(5)? 70 30 10 6 Which of the following is not the graph of a function? Victor's car wash charges different prices for washing different sizes of cars. What are the independent and dependent variables? Independent Variable: car size Dependent Variable: make of car Independent Variable: car size Dependent Variable: price charged Independent Variable: make of car Dependent Variable: car size Independent Variable: price charged Dependent Variable: car size The graph shows cost of admission to the Oklahoma City Zoo for people of ages 0 to 70. What is the domain and range of the data shown on the graph? Domain: all real numbers, Range: all real numbers Domain: 0 ≤ x ≤ 70, Range: 0 ≤ y ≤ 4 Domain: 0 ≤ x ≤ 70, Range: 0 ≤ y ≤ 7 Domain: 0 ≤ y ≤ 7, Range: 0 ≤ x ≤ 70 8 7 6 3 5 4 2 1 5 10 15 20 25 30 35 40 45 50 55 60 65 70 What is the range of the function given in the graph? {1, 1, -2, -2} {1, -3, 2, -1} {-2, -1, 1, 3} {1, 1, -2, 2} If f(x) = x - 5, which expression represents f(2x + 1)? 2x - 4 2x + 11 2x + 4 2x - 9 The graph of the function f(x) is shown. What is f(3)? -5 -2 1 2 The function f(x) is linear. What is the value of f(5)? -5 3 17 20 -1 -3 1 x f(x) 11 14 8 |