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 time is:

N = 25,000 - 1000 * t

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

Graphing the equation can help us solve the problem because we can visually see the trend of the population decline over time. By plotting the equation on a graph, we can determine the point at which the number of polar bears becomes zero, indicating the year of extinction.