Question

Which set of points represents a function? O {(1, -2), (3,-5),(3,-2),(5, -7), (7,-8)} CALCULATOR INACTIVE DIRECTIONS FOR THE CALCULATOR INACTIVE SECTION OF THE TEST: • Calculators may not be used during this test. • Read each problem carefully. • Choose the best answer from the choices given. Fractions in some answer choices may have been simplified. Check each answer choice to see if this has been done. Diagrams used in the test may not be drawn to scale. . At this time, you can check your answers for THIS SECTION ONLY. O {(0,1),(1,-3),(2,-5), (3,-7),(4,-9)} O O {(-1,1),(-1,3),(-1,5),(-1,7),(-1,9)} O O {(-4,0),(-3,-1),(-3,1),(0,2), (0,2)}

Answer 1

The sets of point in option B is a function

Step-by-step explanation:

For a set of points or ordered pairs to be a function, it must have only one input and only one output for each of the input.

a) for the first, input 3 has two outputs (-5 and - 3).

Hence, it is not a function

b) Each of the input has only one output

Hence, it is a function

c) The input -1 has 5 outputs (1, 3, 5, 7, 9).

Hence, it is not a function

d) -3 has two outputs (-1 and 1)

Hence, it is not a function