1.2 Lines in the Plane: Quiz

Problem 2

Find the slopes of the following lines.

  1. 2x + 9y = 0
  2. y = 4.2x – 5
  3. x = –y + 1
  4. –9x –11y = 20

Answers, problem 2

  1. –2/9
  2. 4.2
  3. –1
  4. –9/11

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