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) = (x - 5)2, x ? 5
A. 
f domain = (-?, ?); range = (0, ?)
f-1 domain = (0, ?); range = (-?, ?)
B. 
f domain = (5, ?); range = (0, ?)
f-1 domain = (0, ?); range = (5, ?)
C. 
f domain = (-?, ?); range = (0, ?)
f-1 domain = (0, ?); range = (-?, ?)
D. 
Has no inverse
f domain = (-?, ?); range = (0, ?)
Answer: B
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The following table shows the total cost C of joining a music club and downloading s songs. Find a linear model for the total cost as a function of songs downloaded. Round the slope to three decimal places, if necessary. x 2 8 14 20 y 12.16 16.71 21.26 25.81?
A. 
B. ?
C. ?
D. ?
Translate the percent problem to a proportion using x for the unknown value. Do not solve the proportion.50% of 86 is what?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Express as a product.loga t3
A. log a 3t B. log a 3 C. 3 log a t D. log a 3 ? log a t
Solve the problem.Suppose a business can sell x gadgets for p = 250 - 0.01x dollars apiece, and it costs the business 
dollars to produce the x gadgets. Determine the production level and cost per gadget required to maximize profit.
A. 10,000 gadgets at $150.00 each B. 111 gadgets at $248.89 each C. 13,750 gadgets at $112.50 each D. 11,250 gadgets at $137.50 each