Proportional Relationships — Tables, Graphs, Equations, and Verbal Descriptions

Grade 7·21 problems·~30 min·Common Core Math - Grade 7·standard·7-rp-a-2

Work through problems with immediate feedback

Fluency Practice

A table shows the relationship between $x$ and $y$ with these $(x, y)$ pairs: $(3, 15)$ , $(6, 30)$ , $(9, 45)$ , $(12, 60)$ .

Which conclusion is correct?

The relationship is proportional because $y/x = 5$ for the first row, so $k = 5$ .

The relationship is proportional because $y/x = 5$ for every row, confirming a constant ratio.

The relationship is not proportional because the $y$ -values are multiples of 15.

The relationship is proportional because all $y$ -values are larger than $x$ -values.