Asked by Carrie
Find 3 coordinates on the circle when the center of the circle is (4, -3) and the radius is 5
Help me!!! Thank you :)
Help me!!! Thank you :)
Answers
Answered by
Damon
(x-4)^2 + (y+3)^2 = 25
If x = 4, y = -3 +/- 5
so
(4,-8) or (4,2)
now tell me two more where y = -3
If x = 4, y = -3 +/- 5
so
(4,-8) or (4,2)
now tell me two more where y = -3
Answered by
Carrie
Im still confused about how you got from x=4 to (4, -8)?
Answered by
Damon
First - graph it !!!
If x = 4
(4-4)^2 + (y+3)^2 = 25
0 + (y+3)^2 = 25
y+3 = 5 or -5
y = 2 or y = -8
If x = 4
(4-4)^2 + (y+3)^2 = 25
0 + (y+3)^2 = 25
y+3 = 5 or -5
y = 2 or y = -8