Substitution✓

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Across
  1. 2. The value of a variable that makes an equation true.
  2. 3. A relation where each input has exactly one output.
  3. 4. The multiplicative inverse of a number or fraction.
  4. 5. A mathematical sentence showing a non-equal comparison.
  5. 8. The point where a graph crosses an axis.
  6. 10. A mathematical phrase that contains numbers, variables, and operations.
  7. 12. A symbol, usually a letter, that represents an unknown number.
  8. 14. A set of equations solved together.
  9. 15. The operation of finding the difference between numbers.
  10. 16. To multiply a term outside parentheses by each term inside.
  11. 18. A visual representation of an equation or system of equations.
  12. 19. A mathematical statement that shows two expressions are equal.
  13. 20. Value The distance a number is from zero on the number line.
  14. 24. Replacing a variable with a number or expression.
  15. 27. To rewrite an expression as a product of its parts.
  16. 29. A number indicating how many times a base is multiplied by itself.
Down
  1. 1. A number that multiplies a variable in an algebraic expression.
  2. 6. A type of equation where the highest exponent of the variable is one.
  3. 7. To find the numerical value of an expression by substitution.
  4. 9. A value that does not change in an equation or expression.
  5. 11. Pair A pair of numbers representing a point on a coordinate plane.
  6. 13. An expression with multiple terms, including variables and coefficients.
  7. 15. To rewrite an expression in its simplest form.
  8. 17. Another term for substitution, used in evaluating expressions.
  9. 21. An equation that is always true, regardless of the values of variables.
  10. 22. To get a variable alone on one side of an equation.
  11. 23. A type of equation where the highest exponent of the variable is two.
  12. 25. The act of replacing a variable with a given value.
  13. 26. The opposite operation used to solve for a variable.
  14. 28. The measure of steepness of a line on a graph.