Find the zeros 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 + 4)(x2 - 1)
A. x = 0, touches the x-axis and turns around;
x = -4, crosses the x-axis;
x = 1, touches the x-axis and turns around
B. x = 0, crosses the x-axis;
x = -4, crosses the x-axis;
x = -1, crosses the x-axis;
x = 1, crosses the x-axis
C. x = 0, touches the x-axis and turns around;
x = -4, crosses the x-axis;
x = -1, crosses the x-axis;
x = 1, crosses the x-axis
D. x = 0, touches the x-axis and turns around;
x = 4, crosses the x-axis;
x = -1, touches the x-axis and turns around;
x = 1, touches the x-axis and turns around
Answer: C
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A. (-2, 1]
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C. (2, 7]
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Find the real zeros, if any, of each quadratic function using the quadratic formula. List the x-intercepts, if any, of the graph of the function. f(x) = 4x2 - 25x - 21
A. x = - 
, x = 14
B. x = - 
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D. x = 
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Write the first five terms of the sequence defined recursively. Use the pattern to write the nth term of the sequence as a function of n.
a. 
b. 
c. 
d. 