MBF3C Date: _________________________ Adapted from OAME Support Resources for MBF3C â€“ Quadratics Part I Introducingâ€¦ The Parabola The graph of a __quadratic__ relation is called a ____parabola____. The parabola has some important features: Everything you ever wanted to know about parabolasâ€¦ÂľParabolas can open up or down ÂľThe zero of a parabola is where the graph crosses the x â€“ axis Âľâ€śZeroesâ€ť can also be called â€śx â€“ interceptsâ€ť or â€śrootsâ€ť ÂľThe axis of symmetry divides the parabola into two equal halves ÂľThe vertex of a parabola is the point where the axis of symmetry and the parabola meet. It is the point where the parabola is at its maximum or minimum value. ÂľThe optimal value is the value of the yco-ordinate of the vertex ÂľThe y-intercept of a parabola is where the graph crosses the y â€“ axis __optimal value___zero____ __y - intercept_____vertex________zero__ _axis of symmetry___

MBF3C Date: _________________________