Algebra project

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Across
  1. 3. The x- and y-lines used to form a graph.
  2. 5. A fixed number that does not change.
  3. 8. The point (0, 0) where the axes cross.
  4. 9. A pair of numbers written as (x, y) that shows a point on a graph.
  5. 10. The rate of change in a line; how steep it is.
  6. 11. All possible input values of a function.
  7. 12. A rule that assigns each input exactly one output.
  8. 14. A grid used to graph points using x- and y-axes.
  9. 15. A number that can be written as a fraction (like 1/2, 3, or -4/5).
  10. 16. A math phrase with numbers, variables, and operations but no equals sign.
Down
  1. 1. A number that cannot be written as a simple fraction (like √2 or π).
  2. 2. A function with a constant rate of change; its graph is a straight line.
  3. 4. All possible output values of a function.
  4. 6. The number multiplied by a variable (like the 3 in 3x).
  5. 7. A function whose rate of change is not constant; its graph is curved.
  6. 13. A letter or symbol that represents a number that can change (like x or y).