Identify , whether the following equation represent a straight line , parabola or circle: `x^2+y^2=`25

Identify , whether the following equation represent a straight line , parabola or circle: y = 7

Identify , whether the following equation represent a straight line , parabola or circle: x^(2) + y^(2) =16

Identify , whether the following equation represent a straight line , parabola or circle: Y^2 -6x +3y +5 = 0

Determine whether the equation represent a circle, a point or no circle : x^2 + y^2 +x-y=0

Examine whether the following equation represents a circle or not : 4x^2 + 4y^2 + 12x + 8y+40=0

Every first degree equation in x, y represents a straight line.

Determine whether the equation represent a circle, a point or no circle : x^2 + y^2 - 6x - 8y+25=0

Examine whether the following equation represents a circle or not : 3x^2 + 3y^2 + 2xy + 3x + y = 0

Determine whether the equation represent a circle, a point or no circle : 2x^2 + 2y^2 -24x + 8y+120 = 0

Determine whether the equation represent a circle, a point or no circle : x^2 + y^2 + 2x + 10y + 26=0