A point on the circle $x^{2} + y^{2} = 169$ $x^2 + y^2 = 169$ has an x- coordinate of 12, what are the possible y coordinates?

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Answer 1 · 2018-04-29T18:32:35

$y = \pm 5$ $y=+-5$ .

$x^{2} + y^{2} = 169, and, x = 12$ $x^2+y^2=169, and, x=12$ .

$:. 12^2+y^2=169$ .

$:. y^2=169-144=25$ .

$:. y=+-5$ .

A point on the circle x^2 + y^2 = 169x2+y2=169x^2 + y^2 = 169 has an x- coordinate of 12, what are the possible y coordinates?