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PreAlgebra C1/C2/C3
| Term | Definition |
|---|---|
| like terms | terms of an expression which have the same variables raised to the same exponents |
| simplest form | the simplest form of an algebraic expression is one which has no like terms and no parentheses |
| linear expression | an algebraic expression in which the exponent of the variable is 1 |
| literal equation | an equation that has two or more variables |
| inequality | a mathematical sentence that compares expressions |
| solution of an inequality | a value that makes the inequality true |
| solution set | the set of all numbers which make a mathematical statement true |
| graph of an inequality | a graph that shows all the solutions of the inequality on a number |
| linear equation | an equation whose graph is a line |
| solution of a linear equation | all of the points on a line that make the equation true |
| slope | a ratio of the change in y (the rise) to the change in x (the run) between any two points 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. The slope of the line id m, amd 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 - y1 = m(x - x1). The line passes through the point (x1, y1), and the slope of the line is m |