Chapter SH, Problem 6.4.8EP

To determine

To find: Whether the set of numbers in each table is proportional or not.

Answer to Problem 6.4.8EP

The set of numbers in the table is non-proportional.

Explanation of Solution

Given information:

The table of the set of numbers:

  

The columns in the table represent the different rates of ages to number of teeth.

Here, the rate in the first column can be written in proportion as: $\frac{8}{2}=4$

The rate in the second column can be written in proportion as: $\frac{10}{6}\approx 1.666$

The rate in the third column can be written in proportion as: $\frac{14}{12}\approx 1.166$

The rate in the fourth column can be written in proportion as: $\frac{20}{16}=1.25$

It is seen that each proportion isnot equal to each other.

Hence, the set of numbers in the table is non-proportional.