m = (2 + 8) / (- 4 + 4) = 10 / 0
Which is not defined.
This is a vertical line that passes thro` the given points.
It is the line x = - 4
2007-07-24 06:18:54
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answer #1
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answered by Como 7
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The slope of two given points is the ratio of the change in y over the change in x:
2 - -8 / -4 - -4 =
10 / 0 = 0, so the slope is undefined
Notice the x term is the same in both coordinates. The line is vertical, therefore has an undefined slope.
2007-07-24 09:24:15
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answer #2
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answered by Mitchell . 5
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The slope is the difference in the change of y divided by the difference in the change of x. In the problem this equals (-8-2) divided by (-4 - (-4)). Of course, -4 - (-4) is zero, so the slope is infinite. This indicated the line is vertical and perpendicular to the X axis at the point (-4,0).
2007-07-24 09:26:04
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answer #3
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answered by Roger S 7
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first use the slope form formula
(Y2-Y1)/ (X2-X1)
= (2+8) / (-4+4) = 10/0
This number is mathematically undefined because it is divided by zero. Furthermore, this line is a vertical line, so it does not have a slope because it does not have a raise and run.
2007-07-24 09:40:07
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answer #4
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answered by Shelly 1
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slope = (2+8) / (-4 + 4) = 10 / 0 . . . infinity
angle is 90 degrees w/ horizontal
2007-07-24 09:26:56
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answer #5
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answered by CPUcate 6
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slope=(2-(-8))/(-4-(-4))
10/0=infinity
line x=-4
it is perpendicular to x axis.
2007-07-24 09:23:40
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answer #6
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answered by iyiogrenci 6
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P(-4,-8);Q(-4,2).PQ is parallel to y-axis.so perpendicular to X-axis
slope of PQ=DY/DX=10/0=infinite
2007-07-24 09:28:27
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answer #7
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answered by Anonymous
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slope=(y1-y2)/(x1-x2)
=(-8-2)/(-4-(-4))
=-10/0
the slope is undefined so the line is parallel to y axis
2007-07-24 09:36:03
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answer #8
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answered by Anonymous
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from point, X= -4.0000 Y= -8.0000 Z= 0.0000
to point, X= -4.0000 Y= 2.0000 Z= 0.0000
Length = 10.0000, Angle in XY Plane = 90
Delta X = 0.0000, Delta Y = 10.0000, Delta Z = 0.0000
This is a perpendicular line that is 10 units long.
2007-07-24 09:26:51
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answer #9
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answered by Injam 3
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