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Determine the linearity
x=1,2,3,4,5,6,7
y=2,2.25,2.75,3.5,4,4.5,5

1 Answer

3 votes

Answer:

In summary, the relationship between the x-values (1, 2, 3, 4, 5, 6, 7) and the corresponding y-values (2, 2.25, 2.75, 3.5, 4, 4.5, 5) is linear, with a constant rate of change of 0.5.

Explanation:

To determine if the given data points (x, y) represent a linear relationship, we can check if there is a constant rate of change between the x-values and the corresponding y-values.

Let's calculate the rate of change by finding the difference in y-values divided by the difference in x-values for each consecutive pair of points:

For (1, 2) and (2, 2.25):

Rate of change = (2.25 - 2) / (2 - 1) = 0.25

For (2, 2.25) and (3, 2.75):

Rate of change = (2.75 - 2.25) / (3 - 2) = 0.5

For (3, 2.75) and (4, 3.5):

Rate of change = (3.5 - 2.75) / (4 - 3) = 0.75

For (4, 3.5) and (5, 4):

Rate of change = (4 - 3.5) / (5 - 4) = 0.5

For (5, 4) and (6, 4.5):

Rate of change = (4.5 - 4) / (6 - 5) = 0.5

For (6, 4.5) and (7, 5):

Rate of change = (5 - 4.5) / (7 - 6) = 0.5

Since the rate of change between each pair of consecutive points is constant and equal to 0.5, we can conclude that the given data points represent a linear relationship.

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