Answer:
It would be constant.
Step-by-step explanation:
Since there is no x value, the line will have no slope and just be horizontal about y= -2.
Answer:

2y^3 / x^2 - y^2
hope this helps and is right. p.s i really need brainliest :)
if my answer is wrong then I am incredibly sorry!
Answer:
504 miles
Step-by-step explanation:
Make a proportion
= 
7/12 is 0.5833, so multiply 864 by that to find the number of miles
864(0.5833) = 504
im sure it would be 2:4. if it was to be simplified it would be 1:2