SOLUTION: Given: P1 (R,R-1)& P2(R+1, 2R-3), Find the slope. (Hint R is a Number).

Algebra ->  Points-lines-and-rays -> SOLUTION: Given: P1 (R,R-1)& P2(R+1, 2R-3), Find the slope. (Hint R is a Number).      Log On


   

Question 206274: Given: P1 (R,R-1)& P2(R+1, 2R-3), Find the slope. (Hint R is a Number).
Answer by mickclns(59) About Me  (Show Source):
You can put this solution on YOUR website!
slope m is rise / run or difference in y / difference in x
m = (  (2r-3) - (r-1)  )    /    (  (r+1) - r  )
    = ( 2r - 3 - r + 1 )    /    (r + 1 - r)
    = (r-2) / 1 = r-2
In other words, whatever number r is, the slope is 2 less than that.