Colby and Jaquan are growing bacteria in an experiment in a laboratory. Colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. Jaquan starts with 80 different bacteria that doubles every 3 hours. Let X equal number of days.

Step-by-step explanation:

Let X = the number of days.

For growth rate,

y = X° × rate of growth, k

Where,

X° = initial amount of bacteria

k = rate of growth per day

Colby = 50 bacteria

kc = 2^(24/2 × X)

y = 50 × 2^(12X)

Jaquan = 80 bacteria

kj = 2^(24/3 × X)

y = 80 × 2^(8X)

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

hope i !