D for the straight lined defined by the points (1,59) and (3,87), determine the slope (m) and y-intercept (b).

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A: Here is the solution:

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Q: 8. 1+2+3+6+9+18+ +729 + 1458 .

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Q: M -3 -1 1 3 18 y -21 -11 -1 9

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A: Note : The formula used is wrong . See the below picture for detailed solution.

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