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Pre-Algebra Chap 4
Pre-Algebra Chapter 4
| Term | Definition |
|---|---|
| Linear Equation | An equation whose graph is a line y = x − 1 |
| Solution of a Linear Equation | All of the points on a line |
| Slope | The slope m of a line is a ratio of the change in y (the rise) to the change in x (the run) between any two points (x y x y 1 1 2 2 , and , ) ( ) on a line. It is a measure of the steepness of a line. |
| Rise | The change in y between any two points on a line |
| Run | The change in x between any two points on a line |
| X-Intercept | The x-coordinate of the point where a line crosses the x-axis |
| Y-Intercept | The y-coordinate of the point where a line crosses the y-axis |
| Slope-Intercept Form | A linear equation written in the form y mx b = + is in slope-intercept form. The slope of the line is m, and the y-intercept of the line is b. |
| Standard Form | The standard form of a linear equation is ax by c + = , where a and b are not both zero. |
| Point-Slope Form | A linear equation written in the form y y m x x − = − 1 1 ( ) is in point-slope form. The line passes through the point (x y 1 1 , ,) and the slope of the line is m. |
Created by:
jkuecker