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Matias Sawyer
Mathematics
19 March, 07:11
X^2 + (y-k) ^2=21 what is the value of k
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Karen Liu
19 March, 07:37
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Solve for k:
X^2 + (y - k) ^2 = 21
Subtract X^2 from both sides:
(y - k) ^2 = 21 - X^2
Take the square root of both sides:
y - k = sqrt (21 - X^2) or y - k = - sqrt (21 - X^2)
Subtract y from both sides:
-k = sqrt (21 - X^2) - y or y - k = - sqrt (21 - X^2)
Multiply both sides by - 1:
k = y - sqrt (21 - X^2) or y - k = - sqrt (21 - X^2)
Subtract y from both sides:
k = y - sqrt (21 - X^2) or - k = - sqrt (21 - X^2) - y
Multiply both sides by - 1:
Answer: k = y - sqrt (21 - X^2) or k = sqrt (21 - X^2) + y
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