θ = k ,

where k is the angle in readians measured

in a counter clockwise direction fron the

ray starting at the pole and directed

to the right ( θ = 0 ) rotated

to the line ( with θ = k ).

where p is the closest distance from the

pole (point O) to the line ( @ point P),

theta is defined as above and omega is

the angle in radians from the initial ray

for which θ = 0 in a counterclock wise

direction to the line segment OP.

The graph of this parabola has has an axes of symmetry

through the pole and is in the same direction as its line!

Where is the vertex and focus of this parabola?

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William V. Thayer, PedLog