I think it is more posibly 4
Answer:
the answer is 80%.
Step-by-step explanation:
you would do the new value divided by the old value (1.6/2) which equals 0.8, or 80%.
by dy/dx, we'll be assuming that "y" is encapsulating a function, a function in terms of "x".
Most linear systems you will encounter will have exactly one solution. However, it is possible that there are no solutions, or infinitely many. (It is not possible that there are exactly two solutions.) The word unique in this context means there is a solution, and it's the only one.