# SOLUTION: A line passing through (15,19) and (10, Y) is parallel to a line with slope 2. What is the value of Y. I tried working this problem by using the following equation... M= Y2-Y

Algebra ->  Algebra  -> Linear-equations -> SOLUTION: A line passing through (15,19) and (10, Y) is parallel to a line with slope 2. What is the value of Y. I tried working this problem by using the following equation... M= Y2-Y      Log On

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 Click here to see ALL problems on Linear-equations Question 146519: A line passing through (15,19) and (10, Y) is parallel to a line with slope 2. What is the value of Y. I tried working this problem by using the following equation... M= Y2-Y1/X2-X1 M= Y-19/10-15 Now if they want the slope to be a positive number, then why is the bottom half of the equation (10-15) going to be a negative number (-5). To me, there is no way to get a slope of 2 from this equation. Can you please help.Answer by checkley77(12569)   (Show Source): You can put this solution on YOUR website!M=Y2-Y1/X2-X1 M=Y-19/10-15 2=(y-19)/-5 y-19=-10 y=-10+19 y=9 proof: (9-19)/(10-15) -10/-5=2 voila we have a positive slope=2.