Use the graph to determine the domain and range of the function. 
A. domain: {x|x ? -2, x ? 2}
range: {y|y ? 0}
B. domain: {x|x ? -2, x ? 2}
range: all real numbers
C. domain: all real numbers
range: {y|y ? -2, y ? 2}
D. domain: all real numbers
range: all real numbers
Answer: B
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The life expectancy of a star is a power function of its mass. The value of the power in this function is 
. If the mass is increased by 43%, how is the life expectancy affected? Round your answer to two decimal places if necessary.
?
A. Life expectancy is increased by 40.89% B. Life expectancy is decreased by 40.89% C. Life expectancy is decreased by 59.11%. D. Life expectancy is increased by 59.11%.
Solve the problem.Find the image of the given figure under a reflection across the line m.
A. 
B. 
C. 
D. 
Solve.A domed ceiling is a parabolic surface. For the best lighting on the floor, a light source is to be placed at the focus of the surface. If 3 m down from the top of the dome the ceiling is 15 m wide, find the best location for the light source.
A. 9.4 m down from the top B. 18.8 m down from the top C. 4.7 m down from the top D. 14.1 m down from the top
Give the exact value of the expression.csc 
A. 
B. 
C. 
D. 