Question

Which set of ordered pairs in the form of (x, y) does not represent a function of x?

A. {(1, 1.5), (2, 1.5), (3, 1.5), (4, 1.5)}

B. {(0, 1.5), (3, 2.5), (1, 3.3), (1, 4.5)}

C. {(1, 1.5), (–1, 1.5), (2, 2.5), (–2, 2.5)}

D. {(1, 1.5), (–1, –1.5), (2, 2.5), (–2, 2.5)}

Answer 1

The answer would be : B.[ (0, 1.5) , ( 3, 2.5) , (1 , 3.3) , (1, .45) ]

the function must match each x value to exactly one y value. The only options that fulfill this criteria is only option B.

Hope this helps