linear equations

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Across
  1. 6. y=mx+b
  2. 7. to replace each variable with a given number and calculate the final single numerical value
  3. 8. a mathematical equation that makes a straight line when you graph it
  4. 9. Ax + By = C
  5. 10. the steepness of a line
Down
  1. 1. a set of two numbers written in a specific order inside parentheses, typically in the form (x, y)
  2. 2. the point where a line crosses the y-axis
  3. 3. a symbol, usually a letter, that stands in for an unknown or changing number.
  4. 4. y-y1=m(x-x1)
  5. 5. visual method used to determine if a graph represents a function