Question 904286
1.)   That describes a parabola.  The y-axis is the directrix and A(3,-4) is the focus.  Use the Distance Formula to derive the equation.


2.)  Find the distances as a path around the figure and find if each distance between neighboring points around the path is the same; and also test slopes between two pair of points.  If two intersecting lines are perpendicular and if all the sides are equal, then the figure is a square.