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# ch 6 vocab

### linear equations

QuestionAnswer
What does slope mean in terms of two given points? m= (y2-y1)/(x2-x1)
What is slope in terms of rise and run? The ratio rise to run
What is the slope intercept formula of an equation of a linear function? y = mx + b
slope formula m
slope intercept form y
point-slope formula y-y1
equation of horizontal line y
equation of vertical lines x
midpoint formula (x1+x2 over 2, y1+y2 over 2)
distance formula square root of (x2-x1)squared+ (y2-y1)squared
horizontal lines slopes 0 slope
vertical line slopes no slope (undefined)
parallel lines have the same slope
perpendicular lines have negative reciprocal slopes
definition of slopes rise over run (change in y over change in x)
when would you use rise over run?? use on a graph of a line
when would you use the slope formula?? when you dont have a graph and only given the ordered pair
Created by: jveloz