Type the correct answer in each box.

A circle is centered at the point (5, -4) and passes through the point (-3, 2).

The equation of this circle is (x + )2 + (y + )2 =

Question

Type the correct answer in each box.

A circle is centered at the point (5, -4) and passes through the point (-3, 2).



The equation of this circle is (x + )2 + (y + )2 =

thegreatant · Answer

help.!!

studygurl14 · Answer

First find the radius by using the distance formula on the two points

thegreatant · Answer

for both.?

tkhunny · Answer

Both what?  There is one circle.  One point is the center.  Which point is that?  One point lies on the circle.  The distance between these two points is the Radius.  Go!

studygurl14 · Answer

Use the points given in the question

studygurl14 · Answer

Do you know the distance formula?

thegreatant · Answer

isn't it the square root then (x2-x1)2+(y2-y1)2.?

studygurl14 · Answer

yep. plug in the ponts into the formula to find the radius

thegreatant · Answer

I got 10.770

studygurl14 · Answer

hmmm...i think you did something wrong. Try again.
$\Large d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

thegreatant · Answer

i got -100 now

tkhunny · Answer

Well, try doing it more carefully.  That is not an acceptable result.  There should nt be ANYTHING negative, in there.

|dw:1452271639195:dw|

Just visually, it should be in the neighborhood of 10.