SOLUTION: If c does not equal 0 and the slope of the line passing through (-c, 2c) and (4c, a) is 1, what is the expression for a in terms of c?

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Question 667393: If c does not equal 0 and the slope of the line passing through
(-c, 2c) and (4c, a) is 1, what is the expression for a in terms of c?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

(-c, 2c) and 

(4c, a)   m = (2c-a)/(-c-4c) = (2c-a)/-5c = 1



(2c-a)/-5c = 1

 2c - a = -5c

   7c = a