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 + 2)(x2 - 1)
A. 0, touches the x-axis and turns around;
-2, crosses the x-axis;
1, touches the x-axis and turns around
B. 0, crosses the x-axis;
-2, crosses the x-axis;
-1, crosses the x-axis;
1, crosses the x-axis
C. 0, touches the x-axis and turns around;
2, crosses the x-axis;
-1, touches the x-axis and turns around;
1, touches the x-axis and turns around
D. 0, touches the x-axis and turns around;
-2, crosses the x-axis;
-1, crosses the x-axis;
1, crosses the x-axis
Answer: D
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Factor.x2 - x - 42
A. (x + 7)(x - 6) B. (x + 1)(x - 42) C. (x + 6)(x - 7) D. Prime
Match the graph to its equation.
A. 
- 
= 1
B. 
+ 
= 1
C. 
- 
= 1
D. 
+ 
= 1
Solve the equation.
A. c = 6.5 B. c = 2.5 C. c = 1 D. c = 7.5 E. c = 1.5
Use a calculator to find the interest earned if interest is compounded annually. Round to the nearest cent if necessary.$2500 at 4% for 3 years
A. $2812.16 B. $5312.16 C. $0.16 D. $312.16