SOLUTION: IF A LINE HAS A SLOPE OF 3 AND PASSES THROUGH THE POINTS (-2,-7) AND (4,K) WHAT IS THE VALUE OF K? Thank you! An explanation would be lovely too. :)

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Question 630335: IF A LINE HAS A SLOPE OF 3 AND PASSES THROUGH THE POINTS (-2,-7) AND (4,K) WHAT IS THE VALUE OF K? Thank you! An explanation would be lovely too. :)
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 
Hi,
Slope m = 3
(4, K)
(-2,-7) m = (K+7)/6
(K+7)/6 = 3
K +7 = 18
K = 11
and...
(4, 11)
(-2,-7) m = 18/6 = 3
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