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Quadratic Functions and Equations

axis of symmetry the vertical line that cuts the parabola in half through its vertex
maximum "for a parabola that opens downward, the vertex is a maximum"
minimum "for a parabola that opens upward, the vertex is a minimum"
parabola u-shaped graph of a quadratic function
quadratic equation an equation in the form y = ax2 + bx + c
roots solutions and x-intercepts of a quadratic equation
solutions solution to a system of equations gives values that work in all the equations
vertex the highest or lowest point in the parabola
vertical compression "moves every point in a figure toward the x-axis, while points on the x-axis remain fixed"
vertical stretch "moves every point in a figure away from the x-axis, while points on the x-axis remain fixed"
x-intercept where the line or parabola crosses the x-axis
zeros the solutions to a quadratic equation when each factor is set equal to zero
Created by: aprilchauvette