Find the angle that the line x + 7y + 23 = 0 makes with the positive x axis.

The answer says 172 degrees but no matter what I do, I seem to only get 98 degrees.

Could someone please show me how to do the question?

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- Apr 25th 2009, 06:20 AMxwrathbringerxCoordinate Geometry - Finding Angle
Find the angle that the line x + 7y + 23 = 0 makes with the positive x axis.

The answer says 172 degrees but no matter what I do, I seem to only get 98 degrees.

Could someone please show me how to do the question? - Apr 25th 2009, 06:29 AMmasters