According to the information provided, you have the following ordered pairs:
[tex](0,0),\text{ (1,4), (2,8), (3,13)}[/tex]So, remember that an ordered pair has the form (x,y), where "x" represents the x-coordinates and "y" the y-coordinates.
Knowing that, you can plot each point on a Coordinate plane:
By definition, Proportional relationships are straight lines that passes through the origin. In this case, since it is not a straight line, you can determine that the number of calories burned is not proportional to the number of minutes.
