Previous Standard
Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.
Next Standard
Represent proportional relationships by equations. For example, if total cost t is proportional to the number n of items purchased at a constant price p, the relationship between the total cost and the number of items can be expressed as t = pn.
Worksheets
![7.rp.2b Worksheets - Examining Y=KX worksheet 7.rp.2b Worksheets - Examining Y=KX worksheet](/math/ratios/examining y=kx/english/thumb.png)
![7.rp.2b Worksheets - Examining Y=KX worksheet 7.rp.2b Worksheets - Examining Y=KX worksheet](/math/ratios/examining y=kx/english/thumb.png)
![7.rp.2b Worksheets - Constant of Proportionality (Graphs) worksheet 7.rp.2b Worksheets - Constant of Proportionality (Graphs) worksheet](/math/ratios/identifying constant of proportionality (graphs)/english/thumb.png)
![7.rp.2b Worksheets - Constant of Proportionality (Graphs) worksheet 7.rp.2b Worksheets - Constant of Proportionality (Graphs) worksheet](/math/ratios/identifying constant of proportionality (graphs)/english/thumb.png)
![7.rp.2b Worksheets - Constant of Proportionality (tables) worksheet 7.rp.2b Worksheets - Constant of Proportionality (tables) worksheet](/math/ratios/identifying constant of proportionality (tables)/english/thumb.png)
![7.rp.2b Worksheets - Constant of Proportionality (tables) worksheet 7.rp.2b Worksheets - Constant of Proportionality (tables) worksheet](/math/ratios/identifying constant of proportionality (tables)/english/thumb.png)