Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = -x2(x + 3)(x2 + 1)

Question

A. 0, touches the x-axis and turns around;
-3, crosses the x-axis
B. 0, touches the x-axis and turns around;
3, crosses the x-axis
C. 0, touches the x-axis and turns around;
-3, crosses the x-axis;
-1, crosses the x-axis;
1, crosses the x-axis;
D. 0, touches the x-axis and turns around;
-3, crosses the x-axis;
-1, touches the x-axis and turns around

Answer 1

Answer: A