# SOLUTION: find the slope of the line joining the points whose coordinates are given. (a,b), (b,a)

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 Question 336497: find the slope of the line joining the points whose coordinates are given. (a,b), (b,a)Answer by jim_thompson5910(28476)   (Show Source): You can put this solution on YOUR website!Note: is the first point . So this means that and . Also, is the second point . So this means that and . Start with the slope formula. Plug in , , , and Factor out a -1 from the denominator. Rearrange the terms. Cancel out the common terms. Simplify So the slope of the line through the points (a,b) and (b,a) is . This is true regardless of the values of 'a' and 'b' as long as If you need more help, email me at jim_thompson5910@hotmail.com Also, feel free to check out my website. Jim