Crossword

123456789101112131415161718192021222324252627282930
Across
  1. 5. A relation or an expression involving one or more variables.
  2. 8. Triangle A is bigger than triangle B but they both are right-angle triangles so they are*.
  3. 9. It is used when we are given either a) two angles and one side, or b) two sides and a non-included angle.
  4. 13. y1-y2/x1-x2.
  5. 14. Putting numbers where the letters are
  6. 17. What this symbol means "≈".
  7. 18. A statistical term used to describe a straight-line relationship between two variables.
  8. 22. Two rays sharing a common endpoint.
  9. 23. A type of rigid transformation in which the preimage is flipped across a line.
  10. 24. * of Pythagorean theorem example: If c^2=a^2+b^2 then ABC is a right triangle.
  11. 26. If your equation is in the form ax^2 + bx + c, you can use the equation:* = c - (b2 / 4a).
  12. 28. If your equation is in the form ax^2 + bx + c, you can use the equation:* = c - b^2/4a.
  13. 29. "splitting" an expression into a multiplication of simpler expressions.
Down
  1. 1. A line that passes through two lines in the same plane at two distinct points.
  2. 2. The longest side of a triangle.
  3. 3. Any expression with an equals sign
  4. 4. Triangle A and triangle B have the same shape and the same size so they are*.
  5. 6. Every side of the triangle can be a base, and from every vertex, you can draw the line perpendicular to a line containing the base
  6. 7. Two lines that never intersect.
  7. 10. Not identical.
  8. 11. Two right-angled triangles have the same hypotenuse and corresponding side.
  9. 12. If quadratic equation is ax^2 + bx + c = 0, then use equation b2 − 4ac.
  10. 15. A type of transformation that moves each point in a figure the same distance in the same direction.
  11. 16. A transformation that is the same shape as the original but is a different size.
  12. 19. The way the clock goes.
  13. 20. Y = a(x - h)^2 + k
  14. 21. The sum of angles of a triangle is 180*
  15. 25. Any number that can be written as a fraction with integers.
  16. 27. Used in the gradient formula.
  17. 30. Used in the gradient formula.