Math Crossword Puzzle

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Across
  1. 2. The vertical axis of a coordinate plane.
  2. 7. The point with coordinate 0 on a number line; the point with coordinates (0, 0) in the coordinate plane.
  3. 12. A triangle that has a right angle.
  4. 14. A math sentence using the equal sign to state that two expressions represent the same number.
  5. 16. the number x is usually called the base of the expression x^n, and n is called the exponent.
  6. 18. A pair of numbers that represent the coordinates of a point in the coordinate plane
  7. 19. The equation y = mx + b is the slope-intercept form of a line, where m is the slope and b is the y-intercept of the line.
  8. 20. The side opposite the right angle in a right triangle.
  9. 21. The two sides of a right triangle that form the right angle.
Down
  1. 1. An angle with a measure of 90 deg.
  2. 3. Interest paid a single time on a principal invested or borrowed. Computed using I = Prt.
  3. 4. A letter or symbol that represents an unknown quantity.
  4. 5. An equation showing the relationship between two or more quantities represented by variables.
  5. 6. A circular movement opposite to the direction of the movement of a clock.
  6. 8. The point of intersection of a graph with the x-axis.
  7. 9. The point of intersection of a graph with the y-axis.
  8. 10. K is called the constant of proportionality.
  9. 11. The horizontal axis of a coordinate plane.
  10. 13. A ratio of two unlike quantities that has a denominator of 1 unit.
  11. 15. Base ten numbers written in the form a × 10^n where 1 ≤ a ≤ 10 and n is an integer.
  12. 17. Two lines in a plane that never intersect.