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2 years ago

What are the values of a and b?

English

1 answer:

topjm [15]2 years ago

6 0

Answer:

a = –0.4 and b = 0.15

Explanation:

Shanti wrote the predicted values for a data set using the line of best fit y = 2.55x – 3.15. She computed two of the residual values. What are the values of a and b?

Residual values are the difference between Given and predicted value. That is:

Residual Value = Given - Predicted

Taking the values of the table:

a = 4.1 - 4.5 = -0.4

a = -0.4

And b is:

b = 7.2 - 7.05 = 0.15

b = 0.15

That means right answer is:

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