Write an exponential function in the form y=ab^xy=ab x that goes through points (0, 20)(0,20) and (2, 720)(2,720).

The exponential function that goes through and is .

Step-by-step explanation:

Let be an exponential function of the form that goes through and . Then, we have the following system of equations:

(1)

(2)

By dividing (2) by (1), we obtain the value for :

And the value for is found by (1):

The exponential function that goes through and is .

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.