SOLUTION: find the two values of the unknown coordinate so that the distance between the points is as given. "how to solve this" (1.5,2) and (0,y); distance is 2.5

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: find the two values of the unknown coordinate so that the distance between the points is as given. "how to solve this" (1.5,2) and (0,y); distance is 2.5       Log On


   

Question 376714: find the two values of the unknown coordinate so that the distance between the points is as given.
"how to solve this"
(1.5,2) and (0,y); distance is 2.5

Found 2 solutions by rfer, robertb:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(y-2)/(0-1.5)=2.5
y-2=2.5*-1.5
y-2=-3.75
y=-1.75
---------------
-1.75-2/0-1.5=
-3.75/-1.5=2.5

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
. Then
6.25+=+6.25+-+4y++%2By%5E2,
0+=+-4y+%2B+y%5E2, or
0 = y(-4 + y), or y = 0, 4. There are two possibilities: the point (0,0) or the point (0, 4).