find the values of k so that the lines represent by the equation 2x-3y=9 and kx-9y =18 Will be parallel
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For parallel lines, the condition is a1/a2=b1/b2≠c1/c2
2x-3y-9=0 and kx-9y-18=0
2/k=-3/-9≠-9/-18
Case 1
2/k=-3/-9
2/k=1/3
k=6
Case 2
2/k≠-9/-18
2/k≠1/2
k≠4
So k will be the value 6 except for the value of 4.
2x-3y-9=0 and kx-9y-18=0
2/k=-3/-9≠-9/-18
Case 1
2/k=-3/-9
2/k=1/3
k=6
Case 2
2/k≠-9/-18
2/k≠1/2
k≠4
So k will be the value 6 except for the value of 4.
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