The solution of the system is (400, 3,200). how would you interpret this solution?

The solution (400, 3, 200) is the answer to a system of equations which has three variables. Respectively, this system is expected to have three equations because it has three unknowns. So for example if your unknowns are x, y and z, then the answers will be x=400, y=3, and z=200. 

(1,4)

Step-by-step explanation:

The number of visitors to the park as the temperature increases by x units is represented by the function: f(x) = 4x.The number of people who leave the park early depending on the change in temperature is represented by the function: f(x) = −x + 5.The graph of the two functions is plotted and attached below.The solution to the two functions is the intersection of the two lines: (1,4)The point of intersection is the temperature at which the number of people leaving the park is equal to the number of people in the park.The solution, (1,4) means that when temperature is at 1 unit, the number of people(4) leaving and entering the park is equal.