Find the value of k for which the line ...

Find the value of k for which the line
`(k-3)x -(4-k^(2))y+k^(2)-7k+6=0`.
(a) parallel to x-axis (b) parallel to y-axis.

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The correct Answer is:

(a) k = 3 (b) k = `pm`2

STRAIGHT LINES
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STRAIGHT LINES
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