SOLUTION: Find "k" if the line 3x+ky=5 is parallel to the line 2x-7x=4.

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Question 360476: Find "k" if the line 3x+ky=5 is parallel to the line 2x-7x=4.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

*Note: If these lines are to be parallel, they must have same slope

2x-7y=4.

7y = 2x - 4

y = (2/7)x - 4 slope (2/7)

3x +ky = 5

y = (3/k)x - (5/k)

3/k = 2/7

3 = 2/7 * k

3*(7/2) = k

21/2 = k

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