Use a combination of rules for exponents to simplify. Write answers with only positive exponents. Assume that all variables represent nonzero real numbers.
2
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use the vertical line test to determine whether the graph is a function.
A. Function B. Not a function
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Graph the hyperbola.
- 
= 1
A. 
B. 
C. 
D. 
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Graph the inequality.x - y < -4
A. 
B. 
C. 
D. 
Mathematics
Determine where the given function is concave up and where it is concave down. f(x) = 10x3 - 3x5
A. Concave down on (-?, -1) and (0, 1), concave up on (-1, 0) and (1, ?)
B. Concave up on (-?, -
) and (0, 
), concave down on (-
, 0) and (
, ?)
C. Concave up on (-?, -1) and (1, ?), concave down on (-1, 1)
D. Concave up on (-?, -1) and (0, 1), concave down on (-1, 0) and (1, ?)
Mathematics