Algebra Crossword Puzzle

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Across
  1. 1. A mathematical sentence with an equal sign
  2. 2. Ordered pairs that identify points on a plane
  3. 5. A whole number greater than or equal to 2 that has exactly two positive factors, 1 and itself
  4. 6. Opposite
  5. 7. The process of using logic to draw conclusions
  6. 8. Add or subtract terms that have the same variable and exponent
  7. 10. An expression written with a base and an exponent
  8. 11. The set of whole numbers and their opposites
  9. 13. A polynomial consisting of two terms
  10. 15. Formed by two number lines that intersect at their zero points
  11. 17. The line that divides a graph into two symmetrical parts that are mirror images of each other
Down
  1. 1. Used to solve systems in which one variable is eliminated by adding or subtracting two equations in the system
  2. 2. This is the number in front of the variables in a term
  3. 3. A measure of steepness of a line, represented by m
  4. 4. A representation of a number or a polynomial as a product of primes
  5. 7. The lower half of a fraction
  6. 9. The set of all solutions to the equations
  7. 12. An equation written with one or more variables where the exponent of the variable is one
  8. 14. The answer to a multiplication problem
  9. 16. A monomial or sum of monomials