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OpenStudy (anonymous):
The table shows the proof of the relationship between the slopes of two perpendicular lines. What is the missing statement in step 2?
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OpenStudy (anonymous):
1. AC←→⊥CD←→ (view diagram) ΔABC is similar to ΔCED. given 2. property of similar triangles 3. ABBC = ECDE property of proportion 4. slope of AC←→ = -ABBC slope of DC←→ = DEEC definition of slope 5. slope of AC←→ × slope of DC←→ = -ABBC×DEEC multiplying the slopes 6. (This statement is intentionally left blank.) Substitution Property of Equality 7. slope of AC←→ × slope of DC←→ = -1 simplifying the right side
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