Find a formula for the inverse of the function described below.A size 10 dress in Country C is size 50 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = 
B. f-1(x) = x - 40
C. f-1(x) = 
D. f-1(x) = x + 40
Answer: B
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A balloon is initially full of air, but then it springs a leak. It leaks at a constant rate of 6 cubic inches per minute. After a while the leak is patched, a pump is attached, and the balloon is re-inflated to its original volume. The pumping rate is constant at 7 cubic inches per minute. Let B denote the volume, in cubic inches, of air in the balloon after t minutes.
?
A: Explain in practical terms the meaning of 
.
B: During the time the balloon is leaking air, what is the value of ?
C: During the time air is being pumped into the balloon, what is the value of ?
What will be an ideal response?
Determine algebraically whether the function is even, odd, or neither.f(x) = -5x4 - x2
A. even B. odd C. neither
Determine whether the given equation is a rational function.f(x) = 
- 2x
A. No B. Yes
Plot the given point in a rectangular coordinate system.
A. 
B. 
C. 
D. 