Answer:
x = 8, y = 
Step-by-step explanation:

Both 8 and x sides are congruent so they're equal.
Add 64 + 64.
Square root 128

Final answers: x = 8, y = 
No because 3*2= 6 while 5*2=10 so if it was equivalent it would of been 3/5 to 6/10
The point is not a solution to the equation of the line.
Hope this helps!