Answer:
yes, 10
Explanation:
For a graph to represent a proportional relationship, you need 2 things:
1) The graph is a straight line that passes through the origin.
2) The line is not vertical or horizontal.
Here you have a line that is not vertical or horizontal; and passes through the origin (the point (0, 0) ). Therefore, this line represents a proportional relationship.
To find the constant of proportionality, look for any point except the origin, and divide its y-coordinate by its x-coordinate. The constant of proportionality is also the slope of the line.
For example, pick (1, 10).
constant of proportionality = 10/1 = 10
Answer: yes, 10