Question

Which set of points represents a function? O {(1, -2),(3,-5), (3,-2),(5, -7),(7,-8)} O {(0,1),(1, -3),(2,-5),(3,-7),(4,-9)} O {(-1,1),(-1,3), (-1,5),(-1,7),(-1,9)} O {(-4,0),(-3,-1),(-3,1),(0,-2), (0, 2)}

Answer 1

from the first data given

(1, -2), (3, -5), (3, -2), (5, -7), (7, -8)

The first data set does not represents a function because

when x = 3 different values of y was generated which is against the rule of a function

when x = 3 y = -5 and when x= 3, y = -2

The second data set represents a function

(0, 1), (1, -3), (2, -5), (3, -7), (4, -9)

the values of x generate a unique value of x which makes it represents a function

The answer is (0,1), (1, -3), (2,-5), (3, -7), (4, -9)