Question

Oliver is doing a study on age and shoe size. He has collected the data shown above.

Answer 1

The answer to this question it D.

Answer 2

Answer: D) No, because for some x's there are more than one y's.

Age and Shoe Size

x (age) y (size)  

8               7

9               8

10              9

8                9

14              9

15              11

10              10

33             9

27            9.5

45            10.5

Step-by-step explanation:

The definition of a function states that for every x there is only one y. If you look at the data table for an x- value of 8 there are 2 different y-values 7 and 9. Therefore the correct answer is No, because for some x's there are more than one y's.