Decide whether the given functions are inverses.f = {(-3, -6), (0, 4), (4, -3), (8, 10)}g = {(-6, -3), (4, 0),(-3, 4), (10, 8)}
A. No
B. Yes
Answer: B
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Find all points where the function is discontinuous.
A. x = 2 B. x = 4, x = 2 C. x = 4 D. None
Determine where the function is increasing and where it is decreasing.f(x) = x2 - 10x
A. increasing on (-?, 5) decreasing on (5, ?) B. increasing on (-5, ?) decreasing on (-?, -5) C. increasing on (-?, -5) decreasing on (-5, ?) D. increasing on (5, ?) decreasing on (-?, 5)
Solve.Sarah's car gives 39 miles per gallon. She filled her gasoline tank yesterday and then used 3 gallons of gasoline. If her car's tank can hold 15 gallons, how many more miles can the car run?
A. 585 miles B. 162 miles C. 117 miles D. 468 miles
Solve the rational inequality. Express the solution using interval notation.
< 8
A. 
? (7, ?)
B. (-?, -7) ? 
C. 
D. (-?, -7) ? (7, ?)