5 responses

  1. aditi jaiswal
    January 30, 2017

    Sir if my graph scales of both the axis is different. then to find the slope ,do we need to multiply the slope with the units of x and you? ???

    Reply

    • MZA
      January 31, 2017

      No. You take any two random points on the best fit line, apart from the plotted points. The two selected points should be beyond the two extreme points. Mark those two points as (x1,y1) and (x2,y2) and find the slope using the formula : S = (y2 – y1)/(x2 – x1). Put proper units.

      Reply

  2. Afifa Jameel
    June 27, 2016

    great helppp….??

    Reply

  3. SunnyYasser
    September 23, 2015

    Sir,suppose my last plotted point on the graph is on the edge of the graph paper such that there is no space left for me to extend the line in the graph paper. So should I leave the graph without extending or should I extend it beyond the graph paper domain?Please reply urgently . And if you have any links to any webpages where it is specified,please include that too.Thank You.Please reply Urgently.It will be of much help.

    Reply

    • MZA
      October 1, 2015

      No you cannot extend the best fit line beyond the axis. You have to choose a proper scale so that everything is done within the domain of the graph paper covering more than 50% of it.

      Reply

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