The distance of the point from the plane is:

Answer and explanation

Correct answer: D.

  1. Step 1: Apply the distance formula: .
  2. Step 2: Compute numerator: .
  3. Step 3: Compute denominator: . Thus .
Answer
.
Why not the others: is the unnormalized numerator; uses denominator ; adds rather than subtracts the constant term in the final step.

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