Find the equation to the ellipse, whose focus is the point `(-1,1),`whose directrix is the straight line `x-y +3=0,` and whose eccentricity is `1/2.`

Obtain the equation of the ellipse whose focus is the point (-1, 1), and the corresponding directrix is the line x-y+3=0 , and the eccentricity is 1/2 .

Obtain the equation of the ellipse whose focus is the point (-1, 1), and the corresponding directrix is the line x-y+3=0 , and the eccentricity is 1/2 .

Find the equation of the parabola whose focus is the point (0,0) and the directrix is the straight line 3x-4y+2=0.

Find the equation of the parabola whose focus is the point (0,0) and the directrix is the straight line 3x-4y+2=0

Find the equation of the ellipse whose focus (-1,1) e=1/2 and directrix is x-y+3=0

Find the equation of the parabola whose focus is the point (- 1,- 2) and directrix is x -2y+3 =0.

Find the equation of the parabola whose focus is at the point (1,2) and directrix is x+2y+3=0.

Find the length of the major axis of the ellipse whose focus is (1,-1) , corresponding directrix is the line x - y - 3 = 0 and eccentricity is (1)/(2)

The equation of the ellipse whose focus is (1,-1) the directrix the line x-y-3=0 and eccentricity (1)/(2) is

Find the equation of the parabola whose focus is (2,1) and whose directrix is 3x - y + 1 = 0 .