Fill in the blanks. The ________ of a parabola is the midpoint between the focus and the directrix.

MAT 100—Quantitative Reasoning 17 August 2017 Symbols and Terminology (2.1, page 48) Set—collection of objects, called elements or members 3 ways to designate: 1. Word description (A= the set of natural numbers less than 5) 2. Listing (A= {1, 2, 3, 4}) 3. Setbuilder notation (A= {a a is a natural...