Algebra Defintions: Part 1
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Math Made Easy has compiled a list of commonly used terms in Algebra.Need help with algebra? You are not alone! Algebra is one of the
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Feel Free to read these terms and see how many of them you are familiar with aldeady.
Abscissa: The first coordinate in an ordered pair of numbers associated with a point in a coordinate plane. Also called x-coordinate.
absolute value: The positive number of any pair of opposite nonzero real numbers is the absolute value of each number. The absolute value of 0 is 0. The absolute value of a number a is
denoted by lal.
acute angle: An angle with measure between 0 degrees and 90 degrees.
addition-or-subtraction method: A method of solving a system of two equations; one variable is eliminated by adding or subtracting the equations.
additive inverses: A number and its opposite.
angle: A figure formed by two different rays that have the same end-point.
area: The area of a
region is the number of square units it contains.
arrow notation: A notation used in defining a function; for example, P: n such ABthat 5n � 500.
average: The average of a set of numbers is the sum of the numbers divided by the number of numbers.
axis of symmetry of a parabola: The line containing the maximum or minimum point of the
parabola.
base of a power: The number that is used as a factor a given number of times; in 25 , 2 is the
base.
binomial: A polynomial of only two terms.
boundary: A line that separates the coordinate plane into three sets of points: the points on the line; the points above the line; the points below the line.
box-and-whisker plot: A display of data useful for comparing two distributions.
closed half-plane: The graph of an open half-plane and its boundary.
coefficient: (146) In the monomial 15a2b2 , 15 is the coefficient, or numerical coeffiecient.
collinear points: Points that lie on the same line.
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