Across
- 2. numbers numbers that can be found on the number line. This includes both the rational and irrational numbers.
- 3. refers usually to an element of some set called a space
- 7. numbers a number that cannot be exactly expressed as a ratio of two integers.
- 10. can be divided evenly only by 1, or itself
- 11. the set of "input" or argument values for which the function is defined.
- 12. of best fit A line on a graph showing the general direction that a group of points seem to be heading.
- 13. expression an expression in which radical signs appear.
- 15. a number or quantity placed (generally) before and multiplying another quantity, as 3 in the expression 3x.
- 17. variable a variable in a functional relation whose value is determined by the values assumed by other variables in the relation, as y in the relation y = 3 x 2.
- 19. operations opposite operations that undo each other.
- 20. number a mathematical expression (a + bi) in which a and b are real numbers and I 2= −1.
- 21. lines parallel lines are lines in a plane which do not meet
- 24. interval A set of numbers consisting of all the numbers between a pair of given numbers but not including the endpoints.
Down
- 1. either composite numbers or prime numbers (accept that 0 and 1 are neither prime nor composite).
- 4. an expression that is a sum or difference of two terms, as 3 x + 2 y and x 2− 4 x.
- 5. numbers a number that can be expressed exactly by a ratio of two integers.
- 6. describes both the direction and the steepness of the line.
- 7. variable a variable in a functional relation whose value determines the value or values of other variables, as x in the relation y = 3 x 2.
- 8. value the magnitude of a quantity, irrespective of sign; the distance of a quantity from zero. The absolute value of a number is symbolized by two vertical lines, as |3| or |−3| is equal to 3.
- 9. notation a method for expressing a given quantity as a number having significant digits necessary for a specified degree of accuracy, multiplied by 10 to the appropriate power, as 1385.62 written as 1.386 × 10 3.
- 14. where the graph crosses the x-axis
- 16. A number placed above and to the right of another number to show that it has been raised to a power. For example, 32 indicates that 3 has been raised to a power of 2, or multiplied by itself; 32 is equal to 9.
- 18. a diagram representing a system of connections or interrelations among two or more things by a number of distinctive dots, lines, bars, etc.
- 22. a set of data is the difference between the highest and lowest values in the set.
- 23. equation is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable.