Final answer:
The end behavior of an exponential function with a base greater than 1 is that it will increase without bound as x approaches positive or negative infinity.
Step-by-step explanation:
The end behavior of an exponential function is determined by the base. If the base is greater than 1, the function will increase without bound as x approaches positive or negative infinity. If the base is between 0 and 1, the function will decrease without bound as x approaches positive or negative infinity. In the given equation, the base is 1.25 which is greater than 1. Therefore, the end behavior of the function w(x) = 7 · (1.25)^x is that as x approaches positive or negative infinity, the function will increase without bound.