B.2 Quadratic and Rational Functions
Sketching parabolas (vertex, axis of symmetry, intercepts) and converting between general, factored, and vertex forms; solving quadratic equations and inequalities (factoring, completing the square, quadratic formula); the discriminant and the nature of roots; reciprocal y = 1/x and general rational functions (ax + b)/(cx + d) with their asymptotes.
The quadratic function — three forms, one parabolaSign up
The parabola — vertex, axis of symmetry, intercepts · Three forms of a quadratic — general, factored, vertex
Solving quadratics — formula, discriminant, inequalitiesSign up
Solving quadratics — three methods, one answer · The discriminant — how many real roots, before you solve
Reciprocal and rational functionsSign up
The reciprocal function y = 1/x · General linear rational functions y = (ax + b)/(cx + d)