Polar bears are listed as a threatened species. In 2005, there were about 25,000 polar bears in the world. If the number of polar bears declines by 1000 each year, in what year will polar bears become extinct?(2 points)

Question

Polar bears are listed as a threatened species. In 2005, there were about 25,000 polar bears in the world. If the number of polar bears declines by 1000 each year, in what year will polar bears become extinct?(2 points)

a.) What equation models the number of polar bears?

How can graphing the equation help you solve the problem?

Answer 1

The equation that models the number of polar bears over the years is given by:

N = 25,000 - 1000t

where N is the number of polar bears and t is the number of years since 2005.

Graphing the equation can help you solve the problem because it allows you to visualize the decline in the number of polar bears over time. By examining the graph, you can determine when the number of polar bears reaches zero, indicating the year of extinction.