8th Grade Math - TCAP Vocabulary Review

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Across
  1. 1. data that clusters (closely grouped) along a line (2 words)
  2. 4. the point where a line crosses the y-axis
  3. 8. graphs that use points to display numerical data with two variables or bi-variate data – helps to determine if there are trends , patterns, or association between the variables
  4. 9. angles inside of a polygon formed by the sides of the polygon
  5. 11. angles inside the parallel lines and on same sides of the transversal – they are supplementary (3 words)
  6. 13. scatterplot association when the change in data set has no effect on the second data set (2 words)
  7. 15. orientation of the _____ refers to the order in which they are labeled, clockwise or counterclockwise
  8. 17. describes the horizontal change on a graph
  9. 18. the amount of three-dimensional space occupied by an object
  10. 23. describes the vertical change on a graph
  11. 24. describes a function whose graph does not form a straight line
  12. 26. a three-dimensional figure with one vertex and one circular base
  13. 28. describes a slope that increases from left to right
  14. 29. any number with a square root that is a whole number (2 words)
  15. 30. geometric figures that have the same shape but not the same size (2 words)
  16. 32. the set of whole numbers and their opposites
  17. 33. inverse operation of cubing a number and “undoes” and exponent of 3 (2 words)
  18. 35. a mathematical symbol that denotes the root of a number – the most commonly used is the square root, but can include any root like the cube root, fourth root, etc
  19. 38. transformation of a figure that moves every point of a figure the same direction and the same distance without changing its orientation – can move left/right and up/down – also thought of as a slide
  20. 39. in a right triangle, the two sides adjacent to the right angle
  21. 43. transformation of a figure that turns an image around a fixed point and results in a congruent figure – can move clockwise or counterclockwise
  22. 44. original figure to be transformed by translation, reflection, rotation, or dilation
  23. 48. angles outside the parallel lines and on opposite sides of the transversal – they are congruent (2 words)
  24. 49. slope-intercept form, or y=mx+b is one way to write the equation of a _____ relationship
  25. 50. the set of all positive counting numbers (numbers on a number line starting with 1) (2 words)
  26. 51. decimal that keeps going with a pattern of digits repeating infinitely
  27. 52. the x-coordinate in a relationship
  28. 55. the point where the x-axis and y-axis of a coordinate plane intersect – the coordinate is (0, 0)
  29. 57. includes all the numbers that can be found on the number line - includes both rational and irrational numbers (2 words)
  30. 60. a relationship or rule that assigns each input exactly one output
  31. 63. describes the slope of a vertical line
  32. 64. a transformation of a figure that either enlarges or reduces the size of an original figure by multiplying its dimensions by a scale factor – does NOT result in a congruent figure
  33. 65. a pair of geometric figures having the same size and shape
  34. 68. a ratio that describes the change in y-coordinates as compared to the change in x-coordinates – describes the steepness of a line formed from the graph of a linear relationship – also referred to as rate of change or constant of proportionality
  35. 70. a set of values that show an exact position (x, y) (2 words)
  36. 73. this type of solution occurs when two lines have different slopes and intersect at one single point – only one number can replace the variable to make both sides of the equation equal
  37. 74. in a right triangle, the side opposite from the right angle
  38. 75. orientation of the _____ refers to whether the pre-image and image are facing the same direction on the coordinate plane
  39. 77. a data point with a value significantly greater or less than most other values in the data
  40. 79. numbers that cannot be written as a simple fraction, decimals that are non-repeating/non-terminating, and square roots of non-perfect squares
  41. 80. scatterplot association when an increase in one data set results in an increase in the other data set – the variables change in the same direction (2 words)
  42. 81. the number in front of a variable
  43. 82. the y-coordinate in a relationship
  44. 83. angles that are on the same side of the transversal and on the same side of the parallel lines – they are congruent
  45. 84. decimal that stops or ends
  46. 85. this type of solution occurs when lines have the same slope and same y-intercept – any number can replace the variables to make both sides of the equation equal
Down
  1. 2. a set of two or more linear equations that have the same variables (3 words)
  2. 3. the distance from one point on a circle through the center to another point on the circle
  3. 5. tells us how the side lengths of right triangles are related – the square of the hypotenuse is equal to the sum of the squares of the other two sides (2 words)
  4. 6. the point where a line crosses the x-axis
  5. 7. half of a sphere
  6. 10. result of a change made to an object by translation, rotation, reflection, or dilation
  7. 11. a mathematical expression used to represent a really large or really small number as a number between one and ten raised to a specific power of ten (2 words)
  8. 12. y=mx+b, where m is the slope of the line and b is the y-intercept (3 words)
  9. 14. property used to multiply each term outside of a parentheses by the terms inside the parentheses (2 words) …ex. a(b + c) becomes ab + ac
  10. 16. the distance around a circle
  11. 19. a number that has a whole number as its cube root (2 words)
  12. 20. angles outside the parallel lines and on same sides of the transversal – they are supplementary (3 words)
  13. 21. a line segment that can be drawn from the center of a circle to any point on the circle
  14. 22. lines that intersect to form right angles
  15. 24. scatterplot association when an increase in one data set results in a decrease in the other data set – the variables change in opposite directions (2 words)
  16. 25. numbers that can be written as a fraction/ratio – includes terminating and repeating decimals, and square roots of perfect squares
  17. 27. describes the slope of a horizontal line
  18. 31. the set of all positive counting number starting with 0 (2 words)
  19. 34. a line that shows the general direction of a group of points on a graph – sometimes called the “trend line” (4 words)
  20. 36. type of function whose graph is a straight line
  21. 37. angles inside the parallel lines and on opposite sides of the transversal – they are congruent (2 words)
  22. 40. pair of adjacent angles formed by intersecting lines that add to 180 degrees (2 words)
  23. 41. a three-dimensional figure with two circular bases
  24. 42. a symbol written above and to the right of a mathematical expression to indicate the operation of raising to a power - refers to the number of times a number is multiplied by itself
  25. 45. the new figure that is formed from a pre-image after a transformation
  26. 46. a value, or values, we can put in place of a variable that makes the equation true
  27. 47. terms that have the same base (or variable) and the same exponent (or power) (2 words)
  28. 50. describes a slope that decreases from left to right
  29. 53. the ratio of a circles circumference to its diameter (approx. 3.14)
  30. 54. a constant or a variable in an expression
  31. 56. data that does not cluster (closely grouped) around a line (2 words)
  32. 58. an inverse operation of squaring a number - “undoes” an exponent of 2 (2 words)
  33. 59. a form of writing equations, numbers, or expressions using a certain set of rules in the most common way (2 words)
  34. 61. pairs of opposite angles formed by intersecting lines – they do not share any sides – they are congruent
  35. 62. the point of intersection of two graphed equations – the ordered pair that makes both equations true
  36. 66. to reduce (an equation, fraction, etc) to a simpler form by cancellation of common factors or regrouping/combining like terms
  37. 67. a ratio of the length of one side of an image to the corresponding length of a pre-image – if it is greater than 1 it will enlarge a figure – if it is smaller than 1 it will reduce a figure (2 words)
  38. 69. a mathematical phrase that can contain numbers, variables, and operators (like addition and subtraction) – will not have an equal sign
  39. 71. this type of solution occurs when lines have the same slope and different y-intercepts; they will never intersect – no number can replace the variables to make both sides of the equation equal
  40. 72. transformation of a figure that flips a figure over a line in order to create a mirror image – each new point should be the same distance from the line on the opposite side – creates a congruent figure
  41. 76. mathematical statement consisting of an equal sign between two algebraic expressions that have the same value
  42. 78. a number that is raised to a power