Grade 9 math

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Across
  1. 4. in D=7k+3 what is the initial value?
  2. 5. A symbol for a number we don't know yet, usually a letter
  3. 6. what does y=
  4. 7. The number before a variable
  5. 9. in C=5n+15 what is the rate of change?
  6. 10. what is the x intercept
  7. 11. How would you describe the pattern on this graph
Down
  1. 1. what would be the next number in this graph
  2. 2. what does x= in 5x + 6 = 3x + 8
  3. 3. What does y=
  4. 4. What does y=
  5. 8. what is the y intercept