Conics: Parabolas: Introduction (page 1 of 4) Sections: Introduction, Finding information from the equation, Finding the equation from information, Word problems & Calculators. In algebra, dealing with parabolas usually means graphing quadratics or finding the max/min points (that is, the vertices) of parabolas for quadratic word problems. In the context of conics, however, there are some additional considerations. To form a parabola according to ancient Greek definitions, you would start with a line and a point off to one side. The line is called the directrix; the point is called the focus.
However, wrapping the kink free cable is much easier than a kinked cable, which means you will be saving some time in the long run. 1  Hold the connector of the microphone cable firmly in the left hand and slowly pull the other end towards yourself with the right hand.
4. Use a utility knife to cut foil-faced fiberglass insulation to the proper size. 5. Wrap the insulation around the duct, and then pinch the seam closed. Secure the insulation with short strips of foil tape. 6. Apply a long strip of foil tape along the seam in the insulation. Repeat to insulate the remaining ducts.