Decide whether or not the set of ordered pairs defines a function.{(1, 4), (2, 5), (5, -3), (7, 5), (11, 8)}
A. Yes
B. No
Answer: A
Mathematics
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Find the quadratic approximation of f at x = 0.f(x) = tan-1 4x
A. Q(x) = 4x B. Q(x) = 1 + 4x2 C. Q(x) 1 + 2x2 D. Q(x) = 1 - 4x2
Mathematics
Find the value of the polynomial.-7x + 6 when x = 3
A. -42 B. -27 C. -15 D. -1
Mathematics
Find the inverse of the function.f(x) = 
+ 1
A. f-1(x) = (x + 1)3
B. f-1(x) = x3 - 1
C. f-1(x) = (x - 1)3
D. f-1(x) = 
- 1
Mathematics
Solve the problem. Round your answer to the nearest tenth.Find the work done by a force of 200 pounds acting in the direction 
in moving an object 75 feet from (0, 0) to (-75, 0).
A. 13,416.1 ft-lb B. 6708.2 ft-lb C. 8944.9 ft-lb D. 15,000.0 ft-lb
Mathematics