Give the domain and range of the relation.y = 4x + 4
A. domain: (-?, ?); range: [0, ?)
B. domain: (-?, ?); range: (-?, ?)
C. domain: [0, ?); range: (-?, ?)
D. domain: (-?, ?); range: [4, ?)
Answer: B
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The figure shows the percentage of the U.S. population, f(x), made up of teachersas a function of time, x, where x is the number of years after 1900. Use the graph to solve the problem. 
In which year did the percentage of teachers in the U.S. reach a minimum?
A. 2000 B. 1900 C. 1970 D. 1990
Identify the domain and the range of the relation from the graph.
A. Domain: [-3, ?) Range: [5, ?) B. Domain: (-?, 5] Range: (-?, -2] C. Domain: [-2, 6] Range: [-3, 5] D. Domain: [-3, 5] Range: [-2, 6]
Find the depreciation per unit. Round to the nearest cent.Cost: $655,000Salvage: $65,500Est. Life: 62,000 hours
A. $95.10 B. $10.56 C. $9.51 D. $105.60
Identify whether the equation is a linear equation in one variable. Answer "is" or "is not."
+ 16x = 5
A. is not B. is