Parallel and Perpendicular Extension problem

Author:: Kim Scott

Let A = (-3,-4) and B = (1,2). If C = (5,y) and D = (x,-3), find the locations of C and D so that a) Line AB is parallel to line CD and b) Line AB is perpendicular to line CD.

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G_10.04 Parallel and perpendicular lines_1b
Demo: dashed trace
G_3.03 Triangle inequalities
Section 4.4 Group Explorations
Zeros of Polynomial Functions

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Relative number sizes via area
area de um semicirculo
Perpendicular Bisector
LZ 6.2 Double Number Line Tool
Hoan_Trigonometry Identities

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Constructions
Circumcircle or Circumscribed Circle
Coordinates
Terms
Trigonometric Functions