Question

Write the equation given the following polynomial graph.

Answer 1

Answer: Option (2)

Step-by-step explanation:

There is a double root at x=-1, so there is a factor of $(x+1)^2$.

• Eliminate options (1) and (3).

Also, as x approaches both positive and negative infinity, the graph approaches negative infinity, so the leading coefficient is negative.

• Eliminate (4).