To Place a Conic Section

Select the Conic Curve tool (Drawing > Home > Placement > Create Curves split button).
Enter a data point to define one endpoint.
Enter a data point to define the other endpoint.
Enter a final data point.
If Input By is set to Points, it defines the shoulder point.

If Input By is set to Tangent, it defines the intersection of the tangent lines.

Conic Curve. Left: By Points; Right: By Tangent. Double-dotted curves are partial ellipses (0.0 < ρ < 0.5), solid curves are parabolas (ρ = 0.5), and single-dotted curves are hyperbolas (0.5 < ρ <1.0).