Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero.f(x) = x3 + 7x2 - x - 7
A. -1, multiplicity 1, touches the x-axis and turns around;
1, multiplicity 1, touches the x-axis and turns around;
- 7, multiplicity 1, touches the x-axis and turns around
B. 7, multiplicity 1, crosses the x-axis;
1, multiplicity 1, crosses the x-axis;
- 7, multiplicity 1, crosses the x-axis.
C. -1, multiplicity 1, crosses the x-axis;
1, multiplicity 1, crosses the x-axis;
- 7, multiplicity 1, crosses the x-axis.
D. 1, multiplicity 2, touches the x-axis and turns around;
- 7, multiplicity 1, crosses the x-axis.
Answer: C
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In a 30°–60° right triangle the length of the longer leg is the product of the shorter leg and
Solve by using the quadratic formula.16x2 + 13 = 56x
A. 
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B. 
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D. 
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