The line which is parallel to X axis and crosses the curve y = at an angle of is:
The equation of the line which is a tangent to the curve y = is
y = mx + a/m
Since it makes and angle of 450, m = 1
y2 = x implies a = 1/4
Hence the equation of the tangent is y = x+
That is the y intercept is = 1/2
Hence the equation of the line is y = 1/2