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Grade 8 - Unit 5: Linear Functions
Terms in this set (5)
Two lines that cross each other. Lines intersect at one point unless the lines fall directly on top of each other (in which case they are essentially the same line and are sometimes called coincidental).
The point of intersection of the vertical and horizontal axes of a Cartesian plane. The coordinates of the origin are (0, 0).
A relationship between two equal ratios
The "steepness" of a line. The slope of a line can be found directly when a linear equation is in slope-intercept form (y = mx + b). In this form, the slope is the coefficient of x and is represented by the letter m. The slope of a line can also be found by determining the ratio of the "rise" to the "run" between two points on the graph. In other words, slope measures how much the line rises vertically given a particular run or horizontal distance.
A comparison of two measurements in which the second term has a value of 1. Unit rates are used to compare the costs of items in a grocery store.
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