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MTH 163

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** Question Form_labelMessages **

Inquiry (1/17/12) Systems

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For the system of equations for three points [(1, -2) , (3, 5) , (7, 8)]my solutions were as follows:

a = -.4583

b = 5.3332

c = -6.8749

Each variable was substituted with success, apart from the last equation.

49a + 7b + c = 8

-> 49(- .4583) + 7(5.3332) + (-6.8749) = 8.0008

Is this minute discrepancy common? Are my values still considered accurate regardless?

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Your numbers were accurate only to the fourth decimal place. So a discrepancy in the fourth decimal place would be expected in your result.

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