Desmos Graphing Calculator

CalcReferenceCopy

Math·Advanced Math·Nonlinear functions

easy

The number of bacteria in a liquid medium doubles every day. There are 72,000 bacteria in the liquid medium at the start of an observation.

Which of the following represents the number of bacteria, $y$, in the liquid medium $t$ days after the start of the observation?

A

$y=\frac{1}{2}(72,000{)}^t$

B

$y=2(72,000)$

C

$y=72,000{\left(\frac{1}{2}\right)}^t$

D

$y=72,000(2{)}^t$