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LISD Alg EUS 8
Quadratic Functions and Equations
Question | Answer |
---|---|
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 |