Question

What is the constant of proportionality in this proportional relationship?

X 2 2 1/2 3 3 1/2

y 5/2 25/8 15/4 35/8



1. 4/5


2. 5/4


3. 4


4. 5

Answer 1

2. 5/4

Explanation:

The constant of proportionality in this proportional relationship is the ratio of y to x for any given pair of values. To find it, we can divide the y value by the x value for one of the pairs. For example, using the first pair (x = 2, y = 5/2), we can divide 5/2 by 2 to get the constant of proportionality:

(5/2) / 2 = 5/4