Question

Miriam is studying the growth rate of bacteria. She puts the data in the following table, where x represents minutes and y represents the number of bacteria.

Growth Rate of Bacteria
x

0

1

2

3

y

0.08

0.4

2

10

Which type of function is represented by the data in the table?

(1 point)
Responses

linear
linear

exponential decay
exponential decay

exponential growth
exponential growth

quadratic

Answer 1

Exponential growth.

Each step multiplies y by 5 (0.08 → 0.4 → 2 → 10), so y = 0.08·5^x, an exponential growth function.