Describe the domain and range of the function.
?
?
A. domain: The disk 
range: The interval (0, 1)
B. domain: The disk
range: The interval [0, 1]
C. domain: The disk
range: The interval [0, 1)
D. domain: The disk
range: The interval [0, 1]
E. domain: The disk
range: The interval [0, 1)
Answer: D
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Solve the problem.Find the volume of the solid generated by revolving the region in the first quadrant bounded by the x-axis and the curve y = x cos x, 0 ? x ? ?/2 about the y-axis.
A. 
- 8?
B. 
- 4?
C. 
+ 2?2 - 4?
D. 
- 4?
Sketch the graph of the function. Give the coordinates of the vertex.f(x) = -x2 - 2
A. vertex (2, 0)
B. vertex (0, -2)
C. vertex (-2, 0)
D. vertex (0, 2)
Simplify.160 ÷ 8 - (1 + 2)
A. 17 B. 21 C. 32 D. 19
Graph the linear function by plotting the x- and y-intercepts.-3x - 6y = 6
A. intercepts: (0, 2), (1, 0)
B. intercepts: (0, -1), (2, 0)
C. intercepts: (0, -1), (-2, 0)
D. intercepts: (0, -2), (-1, 0)