Question

How can you use rates to determine whether a situation is a proportional relationship?

A) You can compare corresponding values of the variables to determine whether there is a constant rate.

B) You can add corresponding values of the variables to determine whether there is a constant rate.

C) You can multiply corresponding values of the variables to determine whether there is a constant rate.

D) You can divide corresponding values of the variables to determine whether there is a constant rate.

Answer 1

To check for a proportional relationship by using rates, compare the corresponding variable values to find a constant rate; if y = kx for all corresponding x and y, the relationship is proportional.

Step-by-step explanation:

To determine whether a situation is a proportional relationship, one can use rates by comparing corresponding values of the variables to see if there is a constant rate.

The correct option is A) You can compare corresponding values of the variables to determine whether there is a constant rate. This means that for two variables x and y, if they are in a directly proportional relationship, you can find a constant k such that y = kx. If the ratio between y and x is the same for all pairs of corresponding values, then the relationship is proportional.