anonymous
  • anonymous
wat is the rise and the run of a slope ??
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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anonymous
  • anonymous
it is the change in ((y2-y1)/(x2-x1))
anonymous
  • anonymous
better yet M=((y2-y1)/(x2-x1))
anonymous
  • anonymous
yea but how do i find the rise and the run on the graph ?

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anonymous
  • anonymous
Pick 2 known points on the graph. make sure they are clearly defined at the points you pick. If possible i always use the point of origin (0,0) but you can always use that. after you have your 2 known points subtrack the y values and point in in the numerator slot and the x values and put it in the denomator slot and this will give you yoru M value, or slope, or your rise over run.
anonymous
  • anonymous
alright, now how do i know if its a positive or a negative?
anonymous
  • anonymous
If the line is sloping upward from left to right, so the slope is positive (+).
anonymous
  • anonymous
and If the line is sloping downward from left to right, so the slope is negative (-).
anonymous
  • anonymous
does that answer your question?
anonymous
  • anonymous
Starting at the top of the graph, if it runs from the left to the right like \ then it is negative, but if it runs from the right to the left as you go towards the bottom like / then it is positive.
anonymous
  • anonymous
you are going to find out when you subtract the values of your known points.
anonymous
  • anonymous
thankyou, but im still alittle confused about which is the rise and which is the run :S i can do the formula which is m=(y2-y1)/(x2-x1) but i dont get the rise/run thing on a line graph could u please explain ?
anonymous
  • anonymous
Rise is the vertical change (y2-y1) and run is the horizontal change (x2-x1).
anonymous
  • anonymous
and you always measure it to the y axis?
anonymous
  • anonymous
pretty sure yes
anonymous
  • anonymous
alright thankyou so much :D !

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