Plug in 
to each 
in the function.
Hope this helps.
頑張って!
Answer:
d
it would be an irrational number then
They would be 13 meters apart (simplified)
The answer should be 379.9 in. Squared
X + y = 17
x - y = 29
x = 17 - y
x - y = 29
x = 17 - y
17 - y - y = 29
x = 17 - y
17 - 2y = 29
x = 17 - y
- 2y = 29 - 17
x = 17 - y
-2y = 12
x = 17 - y
y = -6
x = 17 - (-6)
y = -6
x = 17 + 6
y = -6
x = 23
y = -6
