Math crossword

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Across
  1. 4. An equation where the highest power of a variable is 1
  2. 7. the value of (x) that make a polynomial equal to zero
  3. 9. A symbol
  4. 11. A specific relation where every input (x)has exactly one output (y)
  5. 12. The set of all possible output values
  6. 13. The numerical factor multiplied by a variable
  7. 15. An equation where the highest power of a variable is 2
Down
  1. 1. A statement comparing two expressions that may not be equal
  2. 2. A measure of the steepness of a line
  3. 3. A polynomial with only one term
  4. 5. A mathematical phrase containing numbers, variables, and operators
  5. 6. the point where a graph crosses the vertical y-axis
  6. 8. The set of all possible input values
  7. 10. A mathematical sentence stating that two expressions are equal
  8. 14. a value or term that does not change