Question

Please answer this correct

Answer 1

This is a geometric sequence or if you prefer exponential decay of the form

y=ar^t where a is the initial value (at x=0) and r is the common ratio or rate, in this case

dividing any term by the previous term is a constant r=1/4, that is our rate or common ratio so

y=40(1/4)^x

Answer 2

Explanation:

This is a geometric sequence or if you prefer exponential decay of the form

y=ar^t where a is the initial value (at x=0) and r is the common ratio or rate, in this case

dividing any term by the previous term is a constant r=1/4, that is our rate or common ratio so

y=40(1/4)^x