RileyShough RileyShough

05-08-2015
Mathematics

Answered

A circle is described by the equation x2 + y2 + 14x + 2y + 14 = 0. What are the coordinates for the center of the circle and the length of the radius?

A(-7, -1), 36 units
B(7, 1), 36 units
C(7, 1), 6 units
D(-7, -1), 6 units

Verified Answer :

Benjamin16 Benjamin16

09-08-2015

\(x^{2}+y^{2}+14x+2y+14=0 \\ \\ x^{2}+14x+49 +y^{2}+2y+1-36=0 \\ \\ (x+7)^{2}+(y+1)^{2}=36 \\ \\ S=(-7,-1) \\ \\ r=6\)

=======================================

\((x-a)^{2}+(y-b)^{2}=r^{2} \\ \\ S=(a,b)\)

Answer Link

Related Questions

The novel Les Misérables was written by A Victor Hugo B George Sand C Albert Camus D Emile Zola

Sue stacked one box onto another The bottom box had the height of 2 13 feet and the top box had the height of 3 23 feet How tall were the stacked boxes

What is p 7 15p4 9103 32019 110

86018486540452 решите пожалуйста со столбиками

What is generally true of all industrialized nations that have higher tax rates than the United States has These governments are usually stealing from their cit

With a diameter thats 11 times larger than Earths is the largest planet A Jupiter B Mars C Saturn D Venus

how to factor the problem completely

When Kyle tells his friend Matt how to handle a problem Kyle is giving an advising response a True b False

Expanded form for 9084

what is greater 1674 or 167462