y=a•b^x A scientist is experimenting with bacteria growth populations. He starts with 100 bacteria in a petri dish and estimates that the population will triple each day.

Question

1) a=

2) b=

3) Exponential Function:

4) How many bacteria will there be after two days?

Answer 1

a = 100

b = 3

x = time in days

y = 100(3)^x

Two days is two triplings. After 1 day, the population is 300, and after 2 days, the population is 900.