Look at the following function. (a) Is the function one-to-one? (b) If so, find the inverse of the function.B = {(2, 5), (-5, -2), (7, -3), (3, 3)}
A. (a) not one-to-one
(b) Inverse cannot be found
B. (a) one-to-one
(b) B-1 = {(5, 2), (-2, -5), (-3, 7), (3, 3)}
Answer: B
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Evaluate the expression.
2
A. 
B. 
C. 
D. 
Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(
+ 5)(
- 1)
A. 5
- 
B. 
- 5
C. 5
+ 
D. 0
Compare the strengths of earthquakes with magnitudes 5 and 8. ?
A. The one with a magnitude 8 is 160 times stronger than the one with magnitude 5. B. The one with a magnitude 8 is 1,000 times stronger than the one with magnitude 5. C. The one with a magnitude 8 is 100 times stronger than the one with magnitude 5. D. The one with a magnitude 8 is 1.6 times stronger than the one with magnitude 5. E. The one with a magnitude 8 is 10 times stronger than the one with magnitude 5.
Find an equation of the circle satisfying the given conditions.Center at (1, 0), radius 12
A. x2 + (y - 1)2 = 12 B. (x - 1)2 + y2 = 144 C. (x + 1)2 + y2 = 144 D. x2 + (y + 1)2 = 12