Honors Geometry Section 4.6 (2)

Quadrilaterals in the Coordinate Plane

2,

22121 yyxx

2212

21 yyxx

21

21

xx

yym

If two lines are parallel, their slopes are ______

If two lines are perpendicular, their slopes are _________________

equal

opposite reciprocals

You are given the coordinates of the vertices of quad ABCD in the following examples. Determine if

quad ABCD is a parallelogram, rectangle, rhombus or square. If

more than one applies, list each of them.

5

2

16

35

5

2

1

4

1

4

ramparalle log

2935)16( 22

1713)21( 22

5

2

5

2

2

5

2

5

ramparalle log

glerec tan

291323 22

292353 22

busr hom

square