3 years ago

What is the equation of a circle with center (2,-8) and radius 9?

Mathematics

2 answers:

oksian1 [2.3K]3 years ago

7 0

Answer:

x2+y2-4x+16y-13

Step-by-step explanation:

center (h,k)=2,-8

radius(r)=9

we know

(x-h)2+(y-k)2=r2

now insert above given information

(x-2)2+(y+8)2=9×9

leonid [27]3 years ago

4 0

Answer:

9^2= (x+2)^2+(y+8)^2

Step-by-step explanation:

The equation is r^2=(x+h)^2+(y-k)^2

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