For the function f, use composition of functions to show that f-1 is as given.
, 
What will be an ideal response?
Answers may vary. One possible solution is:
1. (f-1 ? f)(x) = f-1(f(x)) = f-1
= 
= 
= 
= x;
2. (f ? f-1)(x) = f(f-1(x)) = f
=
= 
= 
= x
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Find an equation for the line tangent to the curve at the point defined by the given value of t.x = t + cos t, y = 2 - sin t, t = 
A. y = -
x - 
? + 2
B. y = -
x + 
? + 3
C. y = -
x + 
D. y = 
x - 
?
Name the conic or limiting form represented by the given equation.3x2 - 36x + 18 = 0
A. Parallel lines B. Point C. Parabola D. Empty set
Determine whether the number is prime, composite, or neither.15
A. Composite B. Neither C. Prime
Place parentheses, if needed, to turn this into a true statement.4 + 9 - 4 = 9
A. (4 + 9 - 4) = 9 B. (4 + 9) - 4 = 9 C. No parentheses needed D. 4 + (9 - 4) = 9