Algebra crossword puzzle-hunter priour

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Across
  1. 1. x value
  2. 4. the ways that numbers are combined to make new numbers.
  3. 5. the property of a mathematical relationship that can be graphically represented as a straight line.
  4. 7. y value
Down
  1. 2. The result of a multiplication operation is called a product
  2. 3. vertex, often denoted by letters such as P, Q, R, S, is a point where two or more curves, lines, or edges meet. As a consequence of this definition, the point where two lines meet to form an angle and the corners of polygons and polyhedra are vertices.
  3. 6. a system in which the change of the output is not proportional to the change of the input.