Identify the type of variation in the equation 
assuming that Area is constant.
A. direct
B. inverse
C. both
D. none of these
Answer: B
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Draw the graph of the equation.y2 = 7x
A. 
B. 
C. 
D. 
Graph the function and give its domain and range.f(x) = 
A. (-?, ?); [1, ?)
B. (-?, ?); [-1, ?)
C. (-?, ?); (1, ?)
D. (-?, ?); (-?, ?)
Solve the problem.On January 5, the temperature at a camp site near the arctic circle was 
The temperature rose 
per day for 5 days. What was the temperature on January 10th?
A. 14° B. -14° C. 15° D. -15°
The rate of depreciation 
of a machine is inversely proportional to the square of 
, where V is the value of the machine t years after it was purchased. The initial value of the machine was $500,000 and its value decreased $100,000 in the first year. Estimate its value after 6 years. Round your answer to the
nearest integer. ? A. $500,000 B. $475,000 C. $275,000 D. $350,000 E. $550,000