MAT 095 Study Guide - Final Guide: Quadratic Formula, Quadratic Equation, Discriminant
Document Summary
Provide a generalization to each of the terms listed in this section. Adding complex numbers formula (a + bi) + (c + di) = (a + c) + (b + d) i. De nition of a m n change in y change in x f (b) f (a) C (x) = f ixed cost + v ariable cost a m n = n am = (cid:0) n a(cid:1)m. This is the formula for the discriminant: b2 4ac. The discriminant helps give one of three following pieces of information: Dividing complex numbers formula a + bi c + di (c di) (a + bi) (c di) (c + di) (ac + bd) + (bc ad) i c2 + d2. Dividing radicals rule nr a b n a n b. Multiplying complex numbers formula (a + bi) (c + di) = (ac bd) + (ad + bc) i. Multiplying radicals rule n ab = n a n b.
