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Mathematics, 29.07.2021 01:50 wickedskatboarder

The least-squares regression equation y = 8.5 + 69.5x can be used to predict the monthly cost for cell phone service with x phone lines. The list below shows the number of phone lines and the actual cost.

(1, $90)
(2, $150)
(3, $200)
(4, $295)
(5, $350)

Calculate the residuals for 2 and 5 phone lines, to the nearest cent.

The residual for 2 phone lines is $___

The residual for 5 phone lines is $___

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Answers: 3

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