| A | B |
| ratio | a comparison of 2 or more numbers |
| rate | a ratio comparing 2 numbers with different units |
| unit rate | a ratio that shows the rate for one unit of given quantity |
| proportion | an equation showing 2 ratios are equal |
| constant of proportionality | another name for unit rate to find it divide x,y |
| independent variable | a variable (a variable often denoted by x) whose variation does not depend on that of another |
| dependent variable | a variable (often denoted by y) depends on that of another number |
| ordered pair | x,y used to indicate the position of a point |
| origin | 0,0 on a graph (bottom corner ) left |