Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function
domain: {x|-7 ? x ? 7}
range: {y|-7 ? y ? 7}
intercepts: (-7, 0), (0, -7), (0, 7), (7, 0)
symmetry: x-axis, y-axis
B. function
domain: {x|-7 ? x ? 7}
range: {y|-7 ? y ? 7}
intercepts: (-7, 0), (0, -7), (0, 7), (7, 0)
symmetry: x-axis, y-axis, origin
C. function
domain: {x|-7 ? x ? 7}
range: {y|-7 ? y ? 7}
intercepts: (-7, 0), (0, -7), (0, 0), (0, 7), (7, 0)
symmetry: origin
D. not a function
Answer: D
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Determine from the graph whether the function has any absolute extreme values on the interval [a, b].
A.
| Absolute minimum only. |
B. Absolute minimum and absolute maximum.
C. No absolute extrema.
D. Absolute maximum only.
Simplify the given expression. Write the answer with variables in alphabetical order and any constant term last.4s + 12t + 12s
A. 16t + 12s
B. 
s + 12t
C. 16s2 + 12t
D. 16s + 12t
Solve the problem.Write the average of 
and 
as a simplified rational expression. (Hint: To find the average of two numbers, find their sum and divide by 2.)
A. 
B. 
C. 
D. 
Evaluate the function 
at x = 2. 7. Round to 3 decimal places.
A) 4.190 B) 4.590 C) 14.611 D) 5.412 E) 2.890