Which of the following points lies on the circle whose center is at the origin and whose radius is 10?

2 answers:

7 0

Circle at center at (h,k) and radis r is
(x-h)^2+(y-k)^2=r^2
r=10
(0,0) is center
(x-0)^2+(y+0)^2=10^2
x^2+y^2=100

test them

(-6,4)
x=-6 and y=4
36+16=42, not 100
not on it

sqrt 10 and sqrt10
10+10=20, not 100

(6,-8)
36+64=100
correct

answer is (6,-8)

SIZIF [17.4K]3 years ago

7 0

HE IS CORRECT!

THE ANSWER IS (6,-8)!!

BRUHHHHHHHHHHHHHHH!!!

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