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SAT - Math - Coordinate geometry

Line l passes through the origin and makes 30 degrees with the positive x axis.

Line l passes through the origin and makes 300 with the positive x axis.

find the equation of line l.

a) y = x\2
b) y = x\root 2
c) y= x\root 3
d)y= (root 2) x
e) y= (root 3) x

general equation of a line is y = mx + c where m is gradient and c is y intercept m = tan(30) m = 1/√3 coordinates if the origin is (0,0) Putting that in the gen eqn We have 0 = (1/√3) . 0 + c C = 0 So then , the eqn of the line is y = (1/√3)x