The envelope of the family of .straight lines ` y=m^2x+1/ m^2`

The envelope of the family of straight lines y=m^(2)x+(1)/(m^(2))

The envelope of the family of straight lines whose sum of intercepts on the axes is 4 is

The envelope of the family of tangents to the curve y^2=x is

The differential equation of the family of straight lines y = mx + a//m where m is the parameter, is

The differential equation of the family of straight line y=mx+(4)/(m) , where m is the parameter, is

The differential equation of the family of straight line y=mx+(4)/(m) , where m is the parameter, is

Obtain the equation of the family of straight lines parallel to the line y=2x.

Find the value of m so that the straight lines y=x+1, y=2 (x+1) and y=mx+3 are concurrent.

Find the equations of the straight lines in the family of the lines y = mx +2 , for which m and the x - coordinate of the point of intersection of the lines with 2x + 3y = 10 are integers.