For the function, find the average rate of change of f from 1 to x: 
f(x) = 3x
A. 2
B. 3
C. 0
D. 
Answer: B
Mathematics
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Find the domain and range of the relation.
A. domain: (-?, ?), range: (-?, 2] B. domain: (-?, 1], range: (-?, 2] C. domain: (-?, 1) or (1, ?), range: (-?, 2] D. domain: (-?, ?), range: (-?, ?)
Mathematics
Use the trapezoidal rule to find the area.The widths of a small pond were measured at 1.5-m intervals as shown in the following table. Find the area.
A. 140 m2 B. 71 m2 C. 73 m2 D. 70 m2
Mathematics
Use < or > for ? to write a true sentence. Draw a number line if necessary.0 ? 32
A. < B. >
Mathematics
Find the axis of symmetry of the quadratic function.f(x) = -7(x - 2)2 - 5
A. x = -5 B. x = -7 C. x = 2 D. x = -2
Mathematics