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1 50 2 56 3 67 5 84 6 89 7 98 9 92 10 84 12 58 equation to use

User Adriaan
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Explanation:

It seems like you have provided a sequence of pairs of numbers. If I understand correctly, the first number in each pair is a position index, and the second number is a corresponding value.

To find an equation that fits this data, we can use regression analysis to try to find a mathematical function that closely approximates the pattern in the data.

Based on visual inspection of the data, it seems like there may be a roughly quadratic relationship between the position index and the corresponding value. We can try fitting a quadratic function of the form y = ax^2 + bx + c to the data using a regression tool or by solving for the coefficients manually.

Here are the steps to manually solve for the quadratic equation:

1. Choose three data points to substitute into the quadratic equation (x, y): (1, 50), (2, 56), and (3, 67).

2. Substitute each point into the quadratic equation to obtain three equations:

a + b + c = 50

4a + 2b + c = 56

9a + 3b + c = 67

3. Solve the system of equations to obtain values for a, b, and c. One way to do this is to subtract the first equation from the second to get an equation in terms of a and b only, and then do the same for the second and third equations. This gives us two equations:

3a + b = 6

5a + b = 11

Solving for b in terms of a using the first equation and substituting into the second equation gives:

5a + (3a + 6) = 11

8a = 5

a = 5/8

Substituting this value of a back into the first equation above gives:

3(5/8) + b = 6

b = 57/8

Finally, substituting a and b into any of the three original equations gives:

c = 37/8

Thus, we have found a quadratic equation that fits the data reasonably well:

y = (5/8)x^2 + (57/8)x + 37/8

Note that this is not necessarily the only equation that could fit the data, and there may be other equations that fit the data better or worse depending on the specific criteria used to evaluate the fit.

User Hiroga
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