Astroskiessviz
Answered

what is the center and radius of the circle if the equation x² + y² – 8x – 9 = 0 is graph on a coordinate plane?​

Sagot :

Josefaledesma03viz

Answer:

x²+y²+8x-9=0

x²+x+16-16+y²+8x-9=0

(x+4)²+y²-25=0

(x+4)²+y²-25+25=o n+25

(x+4)²+y²=25

center(-4,0)

radius:5