Examine the graph above.

a) What are the zeros of the function?

Answer: The zeros of the function are [[$ x = $]] and [[$ x = $]] .

b) At which value of [[$ x $]] does the function get the value [[$ -1 $]]?

Answer: The function gets the value [[$ -1 $]] when [[$ x = $]] .

c) At which values of [[$ x $]] does the function get negative values.

Answer: A function gets negative values when < [[$ x $]] < .