8, Lesson 18, Unit 4, Grade 8, EngageNY icon
Instructional Activity

Discussion

Lesson 18. Unit 4. Grade 8 EngageNY

EngageNY5 min(s)

This Instructional Activity is a part of the Lesson 18, Unit 4, Grade 8. The following proof is optional. Exercises 5 and 6, below the Discussion, can be used as an alternative. Now we must show that if two straight lines have the same slope and pass through the same point, then they are the same line, which is what you observed in Exercise 4.

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