Exploring Dilations of Lines Try it
The diagram shows a dilation with scale
factor 2. Point P is the center of dilation,
line l is the pre-image and line m is the
image
Move P to explore how the location of P
affects the dilation
1. When P is not on line 1, the image
and pre-image are
Р
2
vn
Check

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.