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