Posted by **manpreet** on Friday, January 11, 2013 at 7:18am.

Find the equation of the straight line passing through (3,-2) and making an angle of 60 degree with the positive direction of y-axis

- maths -
**Reiny**, Friday, January 11, 2013 at 8:20am
The slope of the line is the tan of the angle that the line makes with the x-axis

so if the line makes and angle of 60° with the y-axis , it will make an angle of 30° with the x-axis

so we have tan30° = 1/√3

equation:

y + 2 = (1/√3)(x-3)

√3y + 2√3 = x - 3

x - √3y = 2√3 + 3

change to whatever form of the equation that is needed.

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