x+y>=4,2x-y>0

Solve the following system of inequalities graphically: x + y ge 4, 2x -y > 0

2x-y=4,x-2y+1=0

x+y ge 4, 2x-y lt 0

x+y ge 4, 2x-y lt 0

Equations of the common tangents to the parabola, y=x^(2) and y=-(x-2)^(2) are [x=0,x=4y-2],[x=0,y=4x-2],[y=0,y=4x+4],[y=0,y=4x-4]

The roots of the equation x+2y=4 and 2x-y=0 are

x + y ge 4, 2x - y lt 0

Find the equations of the straight lines passing through the point (-3, 2) and making an angle of 45^(@ with the straight line 3x-y+4=0 (A) x-2y+7=0,2x+y+4= (B) x+2y+7=0,2x-y+4=0(c) x-2y-7=0,2x+y+4=0 (D) x-2y-7=0,2x+y-4=0

Find all common tangents of the pairs of circles x^(2) +y^(2) +4x + 2y -4 =0 and x^(2) +y^(2) -4x -2y +4=0