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?
y-25000=-1000(x-2005)

How can graphing the equation help you solve the problem?
Using a graph you can find the x-intercept which tells you what year the polar bears will go extinct at this rate.

Answer 1

Graphing the equation can help you solve the problem because the x-intercept of the graph represents the year when the number of polar bears will reach zero, indicating their extinction. By plotting the equation on a graph and finding the x-coordinate of the x-intercept, you can determine in which year the polar bears will become extinct.