Given: ACICD and AABC ACED >
Prove: slope of AC slope of DC = -1
Statements
Reasons
1. ACICD
Given
AABC is similar to ACED
2.
Property of similar triangles
3. slope of
AC
- -BB
Definition of slope
EE
4. slope of AC x slope of
CD = AB x D Multiplying the slopes
5. slope of AĆ x slope of CD = EE E Substitution property of equality
6. slope of AC x slope of CD -.1 Simplifying the right side
slope of CD =
>
The table shows the proof of the relationship between the slopes of two perpendicular lines. What is the missing statement in step 2?