Question 779055
*Write the equations of the circle that satisfies each set of conditions*

1) The circle passes through (7,-1) and has its center at (-2,4). 
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The distance from the center to the point is the radius.
Find the distance.
{{{r^2 = diffy^2 + diffx^2 = 5^2 + 9^2}}}
{{{r^2 = 106}}}
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A circle's equation with the center at (h,k) & radius r is 
{{{(x-h)^2 + (y-k)^2 = r^2}}}
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{{{(x+2)^2 + (y-4)^2 = 106}}} is the circle.