Understanding Quadratic Functions
Completion requirements
Browse the glossary using this index
Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL
A
Axis of symmetryThe vertical line that divides a parabola into two mirror-image halves. | |
C
CoefficientA number multiplying a variable. | |
Continuous domainA domain containing every real value within an interval. | |
D
DegreeThe highest exponent of the variable in a polynomial. | |
Discrete domainA domain consisting of separate permitted values. | |
DiscriminantThe expression b² − 4ac, which determines the number of real roots of a quadratic equation. | |
DomainThe set of all allowed input values of a function. | |
I
InterceptA point where a graph meets a coordinate axis. | |
Interval notationA way to describe a continuous set of numbers using boundaries and brackets. | |
M
Maximum pointThe highest point of a downward-opening parabola. | |