Provide an appropriate response.Why is an exponential function one-to-one?
What will be an ideal response?
Answers will vary. A horizontal line will never intersect the graph of an exponential function more than once.
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Answer the question.Andrew creates a bar graph to show the increase in his company's sales. He wants to show the milestones - years in which sales reached 10 million, 20 million, 30 million, 40 million, and 50 million dollars respectively. The data are shown in the table below: 
In the graph, Andrew draws 5 equally spaced bars of heights 1 in, 2 in, 3 in, 4 in, and 5 in respectively. The height of each bar corresponds to the amount of sales. He labels each bar with the corresponding year (1975, 1985, 1993, 1999, 2003 respectively). Why is the graph misleading?
What will be an ideal response?
Find the derivative.f(x) = 
A. 
B. - 
C. 
D. - 
Solve.7x - 7 = 21
A. 21 B. 25 C. 10 D. 4
Find a) the mean, 
, of the data, b) the deviation from the mean for each data item, and c) the sum of the deviations.8.4, 6.9, 5.3, 7.2
A. a) mean: 6.95, b) deviations: 1.45, -0.05, -1.65, 0.25, c) sum: 0 B. a) mean: 6.95, b) deviations: 1.25, -0.15, -1.65, 0.25, c) sum: -0.3 C. a) mean: 7.15, b) deviations: 1.45, -0.25, -1.35, 0.05, c) sum: -0.1 D. a) mean: 7.15, b) deviations: 1.25, -0.25, -1.85, 0.05, c) sum: 0