Holt, Ch 12, course 3
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9 terms
Terms | Definitions |
|---|---|
 boundary line | the set of points where the two sides of a two-variable linear inequality are equal |
| constant of proportionality | a constant ratio of two variables related proportionally |
| direct variation | a relationship between two variables in which the data increase or decrease together at a constant rate |
| linear equation | an equation whose solutions form a straight line on a coordinate plane |
| linear inequality | a mathematical sentence using >, <, ≥, or ≤ whose graph is a region with a straight-line boundary |
| point-slope form | y-y1 = m(x-x1), where m is the slope and (x1,y1) is the point the line is passing through. |
| slope-intercept form | a linear equation written in the form y=mx+b where m is the slope and b is the y-intercept of the equation's graph |
| x-intercept | the x-coordinate of a point where a graph crosses the x-axis |
| y-intercept | the y-coordinate of a point where a graph crosses the y-axis |
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