| A | B |
| function | a relationship between two variables that has one output value for each input value |
| y-axis | the vertical number line on a coordinate plane |
| input-output table | a table used to describe a function by listing input values with their output values |
| slope | the ratio of the vertical change to the horizontal change in a linear graph |
| direct variation | a linear function that passes through the origin and has the equation y = mx |
| origin | the point where the x- and y-axis intersect on a coordinate plane (0,0) |
| quadrants | four regions formed by the x and y axes on a coordinate plane |
| x-axis | the horizontal number line on a coordinate plane |
| scatter plot | a set of ordered pairs graphed on a coordinate plane |