Find the axis of symmetry of the function.f(x) = x2 - 3
A. x = 0
B. x = -3
C. x = 6
D. x = 3
Answer: A
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Graph f as a solid line and f-1 as a dashed line in the same rectangular coordinate space. Use interval notation to give the domain and range of f and f-1.f(x) = 
A. 
f domain = (0, ?); range = (-5, ?)
f-1 domain = (-5, ?); range = (0, ?)
B. 
f domain = (0, ?); range = (5, ?)
f-1 Has no inverse.
C. 
f domain = (0, ?); range = (5, ?)
f-1 domain = (5, ?); range = (0, ?)
D. 
f domain = (0, ?); range = (5, ?)
f-1 domain = (-5, ?); range = (0, ?)
For the pair of similar triangles, find the length of the indicated side.
In the upper triangle, the shortest side has length 16, and the middle side has length 24. In the lower triangle, the shortest side has length 12, the middle side has length 18, and the longest side has length 24. Find the length, x, of the longest side of the upper triangle.
A. x = 30 B. x = 32 C. x = 24 D. x = 40
Find the indicated function value for the function.Evaluate f(x) = 
for f(0)
A. 3 B. 0 C. -3 D. not a real number
Subtract.0 - 30
A. 30
B. 0
C. 
D. -30