Text Options for the Visually Impaired Font Size: a- A+ Color: A A A Revert 
Close vision bar
Open vision bar
light blue pattern background
Pre-Algebra Vocabulary

  1. additive inverse - the opposite of a number
  2. adjacent angles - angles in the same plane that have a common vertex and a common side
  3. algebraic expression - An expression that contains at least one variable
  4. alternate exterior angles - for two lines intersected by a transversal, a pair of angles that lie on opposite sides of the transversal and outside the other two lines
  5. Associative Property - The property that states that for all real numbers a, b, and c, the sum/product is always the same, regardless of their regrouping.

           2 + 3 + 8 = (2 + 3) + 8 = 2 + (3 + 8)

           2 • 3 • 8 = (2 • 3) • 8 = 2 • (3 • 8)

  1. center of dilation - the point of intersection of lines through each pair of corresponding vertices in a dilation
  2. Commutative Property - A property that states that two or more numbers can be added/ multiplied in any order without changing the sum/product

           8 + 20 = 20 + 8

           8 • 20 = 20 • 8

  1. complementary angles - two angles whose measures add to 90°.
  2. Complex Fraction - a fraction that has a fraction in its numerator, denominator, or both.
  3. congruent - having the same size and shape; the symbol is ≅
  4. constant - A value that does not change.
  5. Constant of proportionality - The constant ratio between two quantities in a proportional relationships
  6. continuous graph - a graph made up of connected lines or curves
  7. coordinate plane - A coordinate system formed by the intersection of a horizontal number line, called the x-axis, and a vertical number line, called the y-axis.
  8. coordinate plane - A plane formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y axis
  9. corresponding angles - for two lines intersected by a transversal, a pair of angles that lie on the same side of the transversal and on the same sides of the other two lines.
  10. cube root - a number that is multiplied 3 times to form a product is called a cube root of that product
  11. Density Property - property of real number that states that between any two real numbers is another real number.
  12. dependent variable - output of a function
  13. dilation - a transformation that enlarges or reduces a figure.
  14. discrete graph - a graph mad up of distinct, or unconnected, points.
  15. Distributive Property - For all real numbers, a, b, and c, a(b + c) = ab + ac and a(b - c) = ab - ac
  16. domain - the set of x-values of the ordered pairs in a relation
  17. equivalent ratios - ratios that name the same comparison
  18. evaluate - To find the value of a numerical or algebraic expression.
  19. exterior angle - an angle formed by one side of a polygon and the extension of an adjacent side
  20. factor - A number that is multiplied by another number to get a product.
  21. function - an input-output relationship that has exactly one output for each input
  22. hypotenuse - in a right triangle, the side opposite the right angle
  23. Identity Property of One - The property that states that the product of 1 and any number is that number.
  24. Identity Property of Zero - The property that states that the sum of zero and any number is that number.
  25. image - a figure resulting from a transformation
  26. independent variable - represents the input of a function
  27. indirect measurement - the technique of using similar figures and proportions to find a measure
  28. input - the value substituted into an expression or function
  29. integers - the set of whole numbers and their opposites
  30. interior angles - angles on the inner sides of two lines cut by a transversal
  31. Inverse Property of Addition - the sum of a number and its opposite, or additive inverse.
  32. irrational number - a number that cannot be expressed as a ratio of two integers or as a repeating or terminating decimal
  33. legs - in a right triangle, the sides that include the right angle; in an isosceles triangle, the pair of congruent sides
  34. line of reflection - a line that a figure is flipped across to create a mirror image of the original figure.
  35. Multiplicative Inverse Property - the product of a nonzero number and its reciprocal, or multiplicative inverse, is one
  36. multiplicative inverse - one of two numbers whose product is 1; also called reciprocal.
  37. opposites - two numbers that are an equal distance from zero on a number line; also called additive inverse
  38. order of operations - By evaluating each term in a given expression. Terms are separated by operation symbols + & - . After reducing each set of terms, operations can then be performed left to right.
  39. ordered pair - A pair of numbers that can be used to locate a point on a coordinate plane. (x,y)
  40. origin - the point where the x-axis and y-axis intersect on the coordinate plane. (0,0)
  41. perfect cube - a cube of a whole number
  42. perfect square - a square of a whole number
  43. principal square root - the nonnegative square root of a number
  44. proportion - an equation that states that two ratios are equivalent
  45. proportional relationship - a relationship between two quantities in which the ratios of the quantity to the other quantity is constant
  46. Pythagorean Theorem - in any right triangle, the sum of the squares of the lengths of two legs is equal to the square of the length of the hypotenuse
  47. quadrant - The x- and y-axis divide the coordinate plane into four regions. Each region is called a quadrant.
  48. range (of a relation) - the set of y-values of the ordered pairs
  49. rate of change - A ratio that compares the amount of change in a dependent variable to the amount of change in an independent variable
  50. rational number - any number that can be expressed as a ratio of two integers
  51. real numbers - a rational or irrational number
  52. reciprocal - one of two numbers whose product is 1; also called multiplicative inverse
  53. reflection - a transformation of a figure that flips the figure across the line
  54. relation - a set of ordered pairs is called a relation
  55. remote interior angle - an interior angle that is not adjacent to the exterior angle
  56. repeating decimal - a decimal in which one or more digits repeat infinitely
  57. rotation - a transformation in which a figure is turned around a point
  58. same-side interior angles - for two lines intersected by a transversal, a pair of angles that lie on the same side of the transversal, between the parallel lines
  59. scale - the ratio between two sets of measurements
  60. scale drawing - a drawing that uses a scale to make an object smaller than or larger than the real object
  61. scale factor - the ratio used to enlarge or reduce similar figures
  62. scientific notation - a method of writing very large or very small numbers by using powers of 10
  63. similar - figures with the same shape but not necessarily the same size are similar
  64. slope - A measure of the steepness of a line on a graph; the rise divided by the run.
  65. square root - a number that is multiplied by itself to form a product is called a square root of a product
  66. supplementary angles - two angles whose measures have a sum of 180°
  67. terminating decimal - a decimal number that ends, or terminates
  68. transformation - a change in the size or position of a figure
  69. translation - a movement (slide) of a figure along a straight line
  70. transversal - a line that intersects two or more lines
  71. unit rate - a rate in which the second quantity in the comparison is one unit
  72. variable - A symbol used to represent a quantity that can change.
  73. vertical angles - a pair of opposite angles formed by intersecting lines
  74. x-axis - the horizontal axis on a coordinate plane
  75. x-coordinate - the first number in an ordered pair; it tells the distance to move right or left from the origin.
  76. y-axis - The vertical axis on a coordinate plane
  77. y-coordinate - the second number in an ordered pair; it tells the distance to move up or down from the origin.
Laurel County Schools spacer
cms login intranet login RSS news
spacer
Laurel County Schools
718 North Main Street
London, KY 40741

Phone: (606) 862-4600
Fax: (606) 862-4601
map