What is the domain of f(x)? What is its range?f(x) = 
A. Domain: (-?, -9) ? (-9, ?); range: (0, ?)
B. Domain: (-?, 0) ? (0, ?); range: (-?, 9) ? (9, ?)
C. Domain: (-?, 0) ? (0, ?); range: (-?, -9) ? (-9, ?)
D. Domain: (-?, -9) ? (-9, ?); range: (-?, 0) ? (0, ?)
Answer: A
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Find the limit.
A. does not exist
B. 0
C. - 
D. 1
As a certain animal grows, its length increases toward a maximum of 17 inches. At age t years its length is 
measured in inches. The difference 
between the maximum length and the current length is shown in the table below.
t 0 1 2 3 D 12.00 10.68 9.51 8.46? A: Make a table of successive ratios to show that D can be modeled by an exponential function of time. Round your answer to two decimal places.B: Find an exponential model for the data. Round your answer to two decimal places.C: Plot the graph of the data points along with the exponential model. Include up to 10 years.D: Find a formula that gives the length L after t years. Round your answer to two decimal places. What will be an ideal response?
Find the first term a1 and the common difference d of the arithmetic sequence.an = 6n + 7
A. a1 = 13, d = 7 B. a1 = 7, d = 19 C. a1 = 19, d = 13 D. a1 = 13, d = 6
Give the symbol that represents the portion of the line named and draw a figure showing just the portion named.
Ray RP
A. 
B. 
C. 
D. 
