Here's the question you clicked on:
umm...
Graph the equation with a diameter that has endpoints at (-3, 4) and (5, -2). Write the equation of the circle.
(x-a)^2+(y-b)^2=r^2 where a and b is the centre of the circle i.e the midpoint of the diameter...and r is the radius of the circle which is half of the diameter.......so i think u can calculate it