The functions below represent exponential decay or growth. What is the initial quantity? What is the growth rate? Is this growth or decay and how do you know? Make a rough sketch of the graph of the function. PLEASE SHOW WORK

1) P=8(1.23)^t

2) Q=3.1(0.78)^t

3)Y=3^t/2

4)W=(3/2)^t

5)P=10(3)^t/2