Mr. Cross Puzzle

12345678910111213141516171819202122232425
Across
  1. 3. interval A set of numbers consisting of all the numbers between a pair of given numbers but not including the endpoints.
  2. 4. where the graph crosses the x-axis
  3. 8. describes both the direction and the steepness of the line.
  4. 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.
  5. 11. can be divided evenly only by 1, or itself
  6. 12. 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.
  7. 14. numbers a number that can be expressed exactly by a ratio of two integers.
  8. 15. either composite numbers or prime numbers (accept that 0 and 1 are neither prime nor composite).
  9. 18. 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.
  10. 20. 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.
  11. 21. expression an expression in which radical signs appear.
  12. 23. of best fit A line on a graph showing the general direction that a group of points seem to be heading.
  13. 25. 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.
Down
  1. 1. the set of "input" or argument values for which the function is defined.
  2. 2. a set of data is the difference between the highest and lowest values in the set.
  3. 5. a number or quantity placed (generally) before and multiplying another quantity, as 3 in the expression 3x.
  4. 6. refers usually to an element of some set called a space
  5. 7. an expression that is a sum or difference of two terms, as 3 x + 2 y and x 2− 4 x.
  6. 10. numbers a number that cannot be exactly expressed as a ratio of two integers.
  7. 13. 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.
  8. 16. numbers numbers that can be found on the number line. This includes both the rational and irrational numbers.
  9. 17. operations opposite operations that undo each other.
  10. 19. lines parallel lines are lines in a plane which do not meet
  11. 22. number a mathematical expression (a + bi) in which a and b are real numbers and I 2= −1.
  12. 24. a diagram representing a system of connections or interrelations among two or more things by a number of distinctive dots, lines, bars, etc.