Algebra vocabulary cross word puzzle

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Across
  1. 2. This is an alphabet letter that defines a number but is unknown.
  2. 5. This is the name for the equation y=mx+b.
  3. 7. This is when the equation intercepts with the y value.
  4. 8. This is the y value going down to up.
  5. 12. This is always y=0 because it never touches the x axis.
  6. 13. This is the number in front of a variable.
  7. 15. This is when both expressions are not equal.
Down
  1. 1. This is when there is an input and output.
  2. 3. This is when the center of the equation is cut in half.
  3. 4. This is the rate of change.
  4. 6. This is the x value going left to right.
  5. 9. This is a little number on top of a number or variable which determines how many times a number will be multiplied
  6. 10. This is the x-intercept of a graph.
  7. 11. This is the maximum or minimum value of an equation.
  8. 14. This is the value that never changes is keep on going at a constant rate.