An amusement park has two roller coasters. One is 628 feet long, and the other is 485 feet long if you ride both roller coasters, about how many feet will you travel in all. Estimate the answer using both rounding and compatible numbers. Solve for the actual answer. Which estimate is closer to the actual answer rounding or compatible numbers?

The same lines

Step-by-step explanation:

The same lines will form a dependent system of equations.

This is because when two lines are coincident we have say lines as the same.

If the same line is of the form say

ax+by=c

THis time we can write (x,y) as y = (c-ax)/b

Thus solution would be

ordered pair

Thus dependent solution

But parallel lines do not have solution at all, while intersecting lines have unique solution.

So answer is same lines