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Quadratic functions

Features of quadratic functions

TermDefinition
Parabola A U shape curve.
Vertex of a parabola Minimum or maximum
Axis of symmetry A vertical line through the vertex.
Formula for axis of symmetry x=(-b)/2a
Parabola opens UP When a>0
Parabola opens DOWN When a<0
Suspension bridges, Projectile motion - examples of Parabola A quadratic function
Standard form of a quadratic function y=ax^2+bx+c
y-intercept of a parabola The graph meets the y-axis.
x-intercept of a parabola The graph meets the x-axis.
Created by: jishajosekaithan
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