Holt, Ch 12, course 3

9 terms by LTL 

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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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