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Algebra 8 Online
OpenStudy (anonymous):

Do you plot the slope or y intercept first when graphing a slope intercept equation? Explain why.

OpenStudy (anonymous):

slope

OpenStudy (jdoe0001):

well... check your book on the slope-intercept form should be obvious enough

OpenStudy (anonymous):

Given two points (x1, y1) and (x2, y2), the formula for the slope of the straight line going through these two points is: slope formula: m = [y1 - y2] / [x1 - x2] ...where the subscripts merely indicate that you have a "first" point (whose coordinates are subscripted with a "1") and a "second" point (whose coordinates are subscripted with a "2"); that is, the subscripts indicate nothing more than the fact that you have two points to work with. Note that the point you pick as the "first" one is irrelevant; if you pick the other point to be "first", then you get the same value for the slope:

OpenStudy (triciaal):

I think it would be the y-intercept this is the first point you have when x = 0 where does the graph cross the y-axis

OpenStudy (triciaal):

from that point you can use the slope and "count off" to get the other points if you don't want to calculate

OpenStudy (triciaal):

parallel lines have the same slope so if you start with the intercept you do not have to adjust the graph.

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