8 MATH 1513-315 omework: 2.2 Circles ore: 0 of 1 pt )2.2.27 Decide whether or no

Question

8 MATH 1513-315 omework: 2.2 Circles ore: 0 of 1 pt )2.2.27 Decide whether or not the equation has a circle as its graph. If it does, give the center and the radius. If it does not, describe the graph. x2 +y2 + 8x + 6y + 21 = 0 Select the correct choice below and, if necessary, fill in the answer boxes to complete your choic O A. The graph of the equation is a circle with center (Type an ordered pair.) The radius of the circle is O B. The graph of the equation is a point. O C. The graph of the equation is a line. 0 D. The graph is nonexistent. lick to select and enter your answer(s) and then click Check Answer All parts showing

Explanation / Answer

x2+y2+8x+6y+21=0

x2+8x+16+y2+6y+9=-21-16-9

(x+4)2+(y+3)2=4

Which is the equation of circle with center (-4,-3) and radius of 2 units

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