Find k if the line y = kx - 1 is perpendicular to y = 4x + 3.

  1. k = -4
  2. k = 14
  3. k = - 14
  4. k = 4
Answer

C) k = - 14

4k = -1 Rightarrow k = - 14. SLO M-09-B-05 · Understanding

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