equation for the surface consisting of all points P
which the distance from P to the x-axis is twice the distance from P to the
yz-plane. Identify the surface.
Homework Answers
the distance to the x axis is:√(y2+ z2)
the distance to the yz-plane is: x
2x =√(y2+ z2)
4x2=y2+ z2
x2=y2/4+ z2/4
is the equation of a cone centered on the x axis.
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