Question

Do the values in the table represent a proportional relationship?

x 1 2 3 4
y 2.5 5 7.5 10

Select from the drop-down menu to correctly complete the statement.
All of the y-values a constant multiple of the corresponding x-values, so the relationship

Answer 1

yes every values are increasing constantly by 2.5

Answer 2

Explanation:

Note that for each unit increase in x, y increases by 2.5. The constant of proportionality is therefore 2.5:

y = 2.5x

All of the y-values are a constant multiple of the corresponding x-values, so the relationship is a proportional one.