Decide whether the given functions are inverses.
?
A. No
B. Yes
Answer: B
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Solve. Then graph. Write the solution set using both set-builder notation and interval notation.4x ? 32
A. {x
x > 8}, (8, ?)
B. {x
x ? 8}, [8, ?)
C. {x
x < 8}, (-?, 8)
D. {x
x ? 8}, (-?, 8]
Perform the indicated operation. Write the answer in simplest form.40 ÷ 1
A. 28
B. 29
C. 31
D. 30
Determine two functions, designated by y1 and y2, such that their union will give the graph of the given equation.16x2 + 16y2 = 25
A. y1 = 
and y2 = - 
B. y1 = 
and y2 = - 
C. y1 = 4x + 4y and y2 = 5
D. y1 = 
and y2 = - 
Classify the highlighted value in the table. x - 3 - 2 - 1 0 1 2 y -3 -33 -24 -33 7 7 18 -2 -24 -12 -24 7 11 18 -1 -33 -24 -33 7 7 18 0 20 18 20 42 53 42 1 18 11 18 25 42 25 2 20 18 20 42 53 42 ?
A. a relative maximum B. a saddle point C. a relative minimum D. none of these