find the first differences for each data set, and write an equation to represent the data pattern.
8.
| |0|1|2|3|4|5|6|
|--|--|--|--|--|--|--|--|
| |17|23|29|35|41|47|53|
9.
| |0|1|2|3|4|5|6|
|--|--|--|--|--|--|--|--|
| |25|31|37|43|49|55|61|
10.
| |0|1|2|3|4|5|6|
|--|--|--|--|--|--|--|--|
| |60|180|300|420|540|660|780|
11.
| |0|1|2|3|4|5|6|
|--|--|--|--|--|--|--|--|
| |0|3|6|9|12|15|18|

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Accepted Answer

# Answer:
(8) First - differences: 6, 6, 6, 6, 6, 6; Equation: $y = 6x+17$
(9) First - differences: 6, 6, 6, 6, 6, 6; Equation: $y = 6x + 25$
(10) First - differences: 120, 120, 120, 120, 120, 120; Equation: $y = 120x+60$
(11) First - differences: 3, 3, 3, 3, 3, 3; Equation: $y = 3x$

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