Engineering Board Exam Reviewer · Parabolas · medium

A point on the parabola y2=12x has an abscissa of 6. Find its distance from the vertex.

1. 6
2. 10.39
3. 8.49
4. 12

Answer

B. 10.39

Solution

y2=12(6)=72. The distance from the origin is sqrt(62+72)=sqrt(108)=10.39.

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