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The lines (AC) and (BD) intersect at the point P(3,K)

by sallyj92
Tags: vectors
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sallyj92
#1
Apr28-11, 04:21 PM
P: 5
The lines (AC) and (BD) intersect at the point P(3,K)
Show K=1.

AC=(4,2) or (x,y)=(5,2)+s(4,2)
BD=(3,-6) or (x,y)=(1,5)+t(3,-6)

A(1,0), B(1,5), C(5,2), D(4,-1)

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Mark44
#2
Apr28-11, 04:24 PM
Mentor
P: 21,216
Find equations for the line segments AC and BD, using the coordinates for A, B, C, and D that are given.
Next, find the point of intersection of the two lines.


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