If –1 is a root of f(x), which of the following must be true? A factor of f(x) is (x – 1).
A factor of f(x) is (x + 1).
Both (x – 1) and (x + 1) are factors of f(x).
Neither (x – 1) nor (x + 1) is a factor of f(x).

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

What is the average rate of change for this function for the interval from x=2 to x=4 ?