What's the square root of pi?

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2