College Algebra, 4th Edition

V

• Vandermonde, Alexandre-Théophile, 636

• Variable(s), 2

  • dependent and independent, 185, 215

• Variable costs, 227

• Variation, 403–412

  • constant of, 404

  • direct, 404–406

  • inverse, 406–407

  • joint and combined, 407–409

• Variations of sign, 367–368

• Verhulst, Pierre François, 475, 482

• Verhulst model, 475, 482

• Vertex(ices)

  • of an ellipse, 676, 678

  • of a hyperbola, 691, 692

  • of a parabola, 319, 322, 662

  • of a right circular cones, 659

  • of the solution set of a system of inequalities, 563

• Vertical asymptotes, of a rational function, 386–387, 389

• Vertical ellipses, 678

• Vertical lines, equations of, 203

• Vertical-line test, 222

• Vertical shifts of graphs, 263–266

• Vertical stretching/compressing, 269–271

• Volume, of a wine barrel, 332, 345