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What is the projection of the line segment joining A(1,7,-5) and B(-3,4,-2) on y -axis?

Options

  1. A5
  2. B4
  3. C3
  4. D2

Correct answer

C. 3

Step-by-step solution

Point A=(1,7,-5) and B=(-3,4,-2) Equation of plane A B: a l+b m+c n=0a=(1-(-3))=4 aligned & a=(1-(-3))=4 & b=(7-4)=3 & c=(-5-(-2))=-3 aligned Projection on y -axis =3 .

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