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PreAlg - Chap. 1

Pre Algebra Chapter 1 Mrs. Bradfield

coefficient the number that is multiplied by the variable in an algebraic expression
constant a value that does not change
evaluate to find the value of a numerical or algebraic expression.
expression a mathematical phrase that contains operations, numbers, and/or variables
substitute to replace a variable with a number or another expression in an algebraic expression
variable a symbol used to represent a quantity that can change
addition property of equality if you add the same number to both sides of an equation, the solution is the same
equation a mathematical sentence stating that two expressions are equivalent.
inverse operations operations that undo each other
isolate variable to get a variable alone on one side of an equation or inequality in order to solve it.
solution a value or values that make an equation or inequality true
solve to find an answer or a solution
inequality a mathematical sentence stating the relationship between quantities that are not equivalent
like terms two or more terms that have the same variable raised to the same power
simplify to perform all possible operations, including combining like terms
term the parts of an expression that are added or subtracted
ordered pair a pair of numbers that can be used to locate a point on a coordinate plane
coordinate plane a plane formed by the intersection of a horizontal (x) and a vertical (y) axis.
graph of equation a graph of the set of ordered pairs that are solutions of the equation
origin the point where the x-axis and the y-axis intersect in the coordinate plane.
x-axis the horizontal axis on a coordinate plane
x-coordinate the first number in an ordered pair; it tells the distance to move right or left fom the origin
y-axis the vertical axis on a coordinate plane
y-coordinate the second number in an ordered pair; it tells the distance to move up or down from the origin
Created by: alissa2222