plot the points, and then join them with
line segments
2006-10-16 14:31:17
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answer #1
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answered by Anonymous
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If you click on List(Stat), then go to Edit,
and make sure
L1 is (3,4,-4)
L2 is (4,-3,-1)
in that order, your graphing calculator will graph the points for you, other than this
D = sqrt((x2 - x1)^2 + (y2 - y1)^2)
(3,4) and (4,-3)
D = sqrt((4 - 3)^2 + (-3 - 4)^2)
D = sqrt(1^2 + (-3 + (-4))^2)
D = sqrt(1 + (-7)^2)
D = sqrt(1 + 49)
D = sqrt(50)
D = 5sqrt(2)
(4,-3) and (-4,-1)
D = sqrt((-4 - 4)^2 + (-1 - (-3))^2)
D = sqrt((-4 + (-4))^2 + 2^2)
D = sqrt((-8)^2 + 4)
D = sqrt(64 + 4)
D = sqrt(68)
D = 2sqrt(17)
(3,4) and (-4,-1)
D = sqrt((-4 - 3)^2 + (-1 - 4)^2)
D = sqrt((-7)^2 + (-5)^2)
D = sqrt(49 + 25)
D = sqrt(84)
D = 2sqrt(21)
As you can see, you have a scalene triangle.
2006-10-16 22:38:37
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answer #2
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answered by Sherman81 6
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Sketch is one click away ....
http://img242.imageshack.us/my.php?image=trianglepl3.jpg
2006-10-16 22:14:22
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answer #5
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answered by ahm 1
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