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Graphing Linear Equations

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Uploaded by on Oct 20, 2008

graphing linear equations using the slope-intercept form

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Education

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  • likes, 4 dislikes

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Uploader Comments (hkelbel)

  • How do you graph this linear equation? Y=x+2

    y-x=4

    Plz help:) ?

  • @Jonsgirl4everr - Hi, thanks for watching! First, I would re-write the equation y-x=4 into slope-int. form. So, we have to move the "x" to the other side by canceling it out (doing the opposite): y-x+x = 4+x -> y = x+4. Now you have two equations with a slope of 1/1 and y-intercepts of +2 and +4. Then I would graph them like I demonstrated above.

    I hope that helps. It is harder to write out an explanation. =)

  • Yep!  The variable b stands for the place on the y-axis that the line crosses, so writing it as a point (0,4) is correct.

  • Why do we need 3 point to draw a line? i always tought 2 points are enough to be create a line, hope you will answer! thanks! :)

  • You are right; two points is enough. I just wanted my students to put at least 3 to practice graphing the slope a little more. Thank you for watching! =)

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All Comments (39)

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  • how do you graph this

    y=1/4x

  • good explanation thank you !

  • how would you graph -x-2y=6? Im so confused

  • damn this video is fucken boring as fuck man this shit is stupid and should be deleted

  • I love it! You explain it very well, thanks!!

  • You were amazing help at 10:46 p.m before a quiz, thank you, thank you!

  • I LEARNED A LOT.....

  • @biggee316 it's a variable for the slope

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