SOLUTION: 3x+ky=9 passthrouh a point (1,-2),find k

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Question 1080706: 3x+ky=9 passthrouh a point (1,-2),find k
Found 2 solutions by Alan3354, josmiceli:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
3x+ky=9 pass throuh a point (1,-2),find k
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3*1 + k*(-2) = 9
-2k = 6
k = -3

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+3x+%2B+k%2Ay+=+9+
given: ( 1, -2 )
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Plug the given point into the equation
and solve for +k+
+3%2A1+%2B+k%2A%28-2%29+=+9+
+3+-+2k+=+9+
Subtract 3 from both sides
+-2k+=+6+
Divide both sides by +-2+
+k+=+-3+