Bevery 27
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Pretest: Plane Geometry
Subinit Test
slope of DC-
3. AB - EE
definition of slope
4. slope of AC =
definition of slope
EE
5. slope of ĀČ x slope of DC = AEX pe multiplying the slopes
6. slope of AC x slope of
Dc EEXEE Substitution Property of Equality
7. slope of ĀČ x slope of DC=-1 simplifying the right side
The table contains the proof of the relationship between the slopes of two perpendicular lines. What is the reason for statement 2?
ОА Parallel line segments that meet a common perpendicular line are proportional in length.
OB. The lengths of vertical and horizontal sides in congruent triangles are in a common ratio.
OC Trigonometric identities determine the lengths of the legs in a right triangle.
OD. Corresponding side lengths in similar triangles are proportional in length.