Maths Crossword

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Across
  1. 3. U-shaped plane curve
  2. 4. Mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign
  3. 6. the interior region of a circle
  4. 8. expression which is composed of variables, constants, and exponents, that are combined using mathematical operations such as addition, subtraction, and, multiplication
  5. 9. collection of information gathered by observations, measurements, research or analysis
Down
  1. 1. numbers that are neither terminating nor recurring and cannot be expressed as a ratio of integers
  2. 2. Lines which have the same starting point and the same endpoint.
  3. 5. sum of _____ = -b/a
  4. 7. When there is at least one set of values for the unknowns that satisfies each equation