Question #3fd9f

1 Answer
Apr 5, 2017

#2- (0,5),(-1,4),(2,7)#
See explanation below:

Explanation:

As per given coordinates I assume they are all two dimensional coordinates.

Therefore, solving the given equation we get:

#2y-2x=10#
#2(y-x)=10#
#y-x=10/2#
#y-x=5#
Multiply both sides with -1 we get:
#x-y=-5#

Now:
from the given coordinate sets:

from 1:
#(2,5),(0,5),(5,0)# only #(0,5)# satisfy the equation.

from 2:
#(0,5),(-1,4),(2,7) # All of them satisfy the equation.

from 3:
#(0,-5),(1,-4),(-4,-9)# only #(0, 5)# satisfy the equation.

So, if they are asking only a set then Set 2 is the answer which satisfy the given equation.