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Calculate the slope of each linear relationship using the formula. Show all your work. Number of Carnival...

1. Calculate the slope of each linear relationship using the formula. Show all your work.
Number of Carnival Ride Tickets | Cost (dollars)
4 | 9
8 | 12
16 | 18
32 | 30
x | y
-1 | -13
0 | -2
2 | 10
5 | 28
2. Days Passed | Vitamins Remaining in Bottle
0 | 25
1 | 23
2 | 21
3 | 19
4. 7 | 10 | 19 | 40
1 | 2 | 3 | 4

Answer

  1. Number of Carnival Ride Tickets vs. Cost:
    Using the formula for slope, m = (y2 - y1) / (x2 - x1):
    Between (4, 9) and (8, 12): m = (12 - 9) / (8 - 4) = 3/4
    Between (8, 12) and (16, 18): m = (18 - 12) / (16 - 8) = 6/8 = 3/4
    Between (16, 18) and (32, 30): m = (30 - 18) / (32 - 16) = 12/16 = 3/4
    The slope is consistent at 3/4.

    x vs. y:
    Between (-1, -13) and (0, -2): m = (-2 + 13) / (0 + 1) = 11
    Between (0, -2) and (2, 10): m = (10 + 2) / (2 - 0) = 12/2 = 6
    Between (2, 10) and (5, 28): m = (28 - 10) / (5 - 2) = 18/3 = 6
    The slope is consistent at 6.

  2. Days Passed vs. Vitamins Remaining:
    Using the formula for slope, m = (y2 - y1) / (x2 - x1):
    Between (0, 25) and (1, 23): m = (23 - 25) / (1 - 0) = -2
    Between (1, 23) and (2, 21): m = (21 - 23) / (2 - 1) = -2
    Between (2, 21) and (3, 19): m = (19 - 21) / (3 - 2) = -2
    The slope is consistent at -2.

  3. 4. Sequence:
    Calculate the differences between consecutive terms in each row:
    First row: 7, 10, 19, 40
    Differences: 10 - 7 = 3, 19 - 10 = 9, 40 - 19 = 21
    Second row: 1, 2, 3, 4
    Differences: 2 - 1 = 1, 3 - 2 = 1, 4 - 3 = 1
    The differences in the first row are not consistent, indicating a non-linear relationship.

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