5 x-2y =-4 and 2x+y = 4 x-2y = 4 and 2x+y=-4 O x-2y=-2 and 2x+y=-4 x-2y = 2 and 2x+y=4

I think that it is the last to set of equations

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,