Curve matching.

This is just an example. Find a different image online that appears to be the shape of a parabola. Insert that image into your file. Using the conic section tool, create a parabola, using the focus and directrix, to match the curve. Hint: it makes it easier if you change the opacity of the image you insert. Find another image, one that appears to be an ellipse and repeat the exercise. Find a third image, one that has a curve that appears to be a hyperbola, or one branch of a hyperbola and repeat the activity. (Nuclear cooling towers are in the shape of hyperbola. If you are having trouble finding something else, try that.)