Question

The graph shows a bacteria population as a function of the number of days since an antibiotic was introduced.

How many bacteria were present when the antibiotic was first introduced?

Enter your answer in the box.

Answer 1

14 million bacteria were present when the antibiotic was first introduced.

Answer 2

14 million bacteria

Explanation:

At time=0, the bacteria was introduced.

The first point on the graph, the y-point corresponding to t=0, is the initial amount of bacteria. This point is 14.

Since y-axis is given in millions, 14 corresponds to 14 million.

Hence, 14 million bacteria were present when the antibiotic was first introduced.