Least common denominator (LCD)
The least common denominator (LCD) of two or more fractions is the smallest number that can be divided without remainder by each fraction's denominator. The LCD of is 12. The LCD of is 30.
Legs of a right triangle
The two shortest sides of a right triangle.
Length of a rectangle
Each of the longer sides of a rectangle.
Less than or equal to symbol
Less than symbol
The is read " 2 is less than 8."
Radicals that have the same index and radicand.
Like square roots
Square roots having the same radicand.
Like terms have identical variables with identical exponents. -5x and 3x are like terms. -7xyz and -12xyz are like terms.
A portion of a straight line that has a beginning and an end.
A mathematical equation such as 3x + 7 = 5x - 2 or 5x + 7y = 9, in which each variable has an exponent of 1.
Linear equation in two variables
An equation of the form Ax + By = C, where A, B, and C are real numbers. The graph of a linear equation in two variables is a straight line.
A function of the form (x) = ax + b.
A statement in which each variable has an exponent of 1 and no variables are in the denominator. Some examples of linear inequalities are
Line of symmetry of a parabola
A line that can be drawn through a parabola such that, if the graph were folded on this line, the two halves of the curve
would correspond exactly. The line of symmetry through the parabola formed by
The line of symmetry of a parabola always passes through the vertex of the parabola.
The standard metric measurement of volume. 1 liter = 1000 milliliters. 1 liter = 0.001 kiloliter.
An equation that has other variables in it besides the variable for which we wish to solve. I = prt, 7x + 3y - 6z = 12, and P = 2w + 2l are examples of literal equations.
For a positive number x, the power to which the base b must be raised to produce x. That is, , where . A logarithm is an exponent.
An equation that contains at least one equation.
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