Write an equation for a function whose graph fits the given description.The graph of f(x) = 
is vertically stretched by a factor of 2, and the resulting graph is reflected across the x-axis.
A. y = -
B. y = -2
C. y = 2
D. y = -2
Answer: B
You might also like to view...
A value of sinh x or cosh x is given. Use the definitions and the identity 
to find the value of the other indicated hyperbolic function.sinh x = - 
, cosh x =
A. - 
B. 
C. 
D. 
Solve the problem.The area A = ?r2 of a circular oil spill changes with the radius. At what rate does the area change with respect to the radius when 
A. 9? ft2/ft B. 3? ft2/ft C. 6? ft2/ft D. 6 ft2/ft
Write an inequality that satisfies the description.Inside the circle with radius 2 and center (0, 0)
A. x2 - y2 < 4 B. x2 + y2 < 4 C. x2 + y2 > 4 D. x2 + y2 < 2
Solve the problem.A small farm field is a square measuring 320 ft on a side. What is the perimeter of the field? If you double the length of each side of the field, what is the new perimeter?
A. 640 ft, 2560 ft B. 320 ft, 1280 ft C. 640 ft, 1280 ft D. 1280 ft, 2560 ft