Unit One Vocabulary

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Across
  1. 4. of sets The union of sets A and B, written A U B, is the set of all elements in either A or B (or in both)
  2. 7. Having the same value
  3. 11. A number multiplied by a variable in an algebraic expression.
  4. 13. Constraints are limits on the variables in the function
  5. 15. equation An equation whose graph is a straight line
  6. 17. graph bar break, no key, intervals are too large, labels are inaccurate
  7. 19. of inequalities a set of two or more inequaltites with the same variables. the solution is where the shading overlaps
  8. 20. plane A plane that is divided into four regions by a horizontal line called the x-axis and a vertical line called the y-axis.
  9. 21. A letter used to represent one or more numbers
  10. 23. A mathematical phrase that contains operations, numbers, and/or variables.
  11. 24. shaped line on a graph
  12. 27. vertical axis on a coordinate plane...top to bottom
  13. 28. numbers A real number that can be written as a ratio of two integers(fraction). Rational numbers in decimal form are terminating or repeating.
  14. 29. the point (0,0) where the x-axis and the y-axis intersect in a coordinate plane
  15. 30. of an expression the parts of an expression between the + and - signs
  16. 31. A real number subset of positive and negative whole numbers: {... -3, -2, -1, 0, 1, 2, 3...}(Does not include fractions or decimals)
Down
  1. 1. In a right triangle, the hypotenuse is the longest side, which is opposite the right angle.
  2. 2. set A set with an unlimited number of elements that cannot be counted.
  3. 3. equation Any equation that can be put in the form ax^2+bx+c=0:
  4. 5. set a set with no elements shown by the symbol { } or a circle with a line going through it
  5. 6. set Any set whose elements can be counted.
  6. 8. numbers A real number subset on positive numbers: {1, 2, 3, ....}. Also called "counting numbers."
  7. 9. A system of ordered marks at fixed intervals used as a reference standard in measurement
  8. 10. A value that does not change (number)
  9. 12. of sets The intersection of the sets of A and B, written A∩B, is the set of elements that are in both A and B., only the members that overlap
  10. 14. numbers A real number subset for numbers that cannot be written as fractions. Examples include non-repeating decimals and square roots of non-perfect squares.
  11. 16. a quantity that is multiplied
  12. 18. numbers the set of numbers that includes rational and irrational numbers
  13. 19. of equations A set of equations with the same variables. The solution of the system is the ordered pair that is a solution for all of the equations.
  14. 22. value The distance a number is from zero on a number line. ALWAYS POSITIVE
  15. 23. A mathematical sentence that contains an equal sign
  16. 25. horizontal axis on a coordinate plane...left to right
  17. 26. numbers A real number subset of natural numbers (counting numbers) and zero; {0, 1, 2, 3...}