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Mathematics 9 Online
OpenStudy (anonymous):

find the angle of inclination for 2x + 3y = 11

OpenStudy (paxpolaris):

\[ 2x + 3y = 11\] y=?

OpenStudy (paxpolaris):

\[\large y=-\frac23x+{11\over3}\]

OpenStudy (paxpolaris):

so the slope is \(-2/3\)

OpenStudy (paxpolaris):

angle of inclination \(=\tan^{-1}(-2/3)\)

OpenStudy (paxpolaris):

|dw:1415844565072:dw|

OpenStudy (paxpolaris):

=-33.7degrees

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