SOLUTION: Points A (5,2)and B(-3,y) lie on a line with slope 3/2. What is the y-coordinate of B? Explain how you found your answer.

Algebra ->  Linear-equations -> SOLUTION: Points A (5,2)and B(-3,y) lie on a line with slope 3/2. What is the y-coordinate of B? Explain how you found your answer.      Log On


   



Question 1019187: Points A (5,2)and B(-3,y) lie on a line with slope 3/2. What is the y-coordinate of B? Explain how you found your answer.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
change in y/change in x is slope
(y-2)/(-3-5)=3/2
(y-2)/(-8)=3/2
cross multiply
2(y-2)=-24
2y-4=-24
2y=-20
y=-10
y-2=(3/2)(x-5)
y=(3/2)x-(15/2)+2
y=(3x/2)-(11/2)
(5,2) and (-3,-10) lie on the line with slope 3/2
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C%283x%2F2%29-%2811%2F2%29%29