Educational diagram showing four types of parabolas with directional openings. Includes equations and vertex positions, ideal for teaching math concepts in geometry and conic sections

curve, focus, design, stem, formula, education, geometric, geometry, symmetrical, graph, algebra, calculation, axis, calculus, vertex, equation, directrix, equations, teaching aid, red dot, Mathematical function, geometric figure, school subject, education material, Math Class, learning tool, coordinate plane, math chart, function graph, quadratic formula, conic section, teaching resource, math tutorial, mathematics illustration, academic content, mathematical drawing, geometry teaching, x y plane, vertical parabola, upward parabola, textbook figure, shape graph, quadratic curve, plotted graph, opening direction, horizontal parabola, high school math, downward parabola, c value, algebraic form,