Match the graph with its function using the x-intercepts.
A. f(x) = x-2 - 2x-1 - 3
B. f(x) = x-2 - 2x-1 + 3
C. f(x) = x-2 + 2x-1 + 3
D. f(x) = x-2 + 2x-1 - 3
Answer: D
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Set up an integral for the length of the curve.x = sin 7y, - ? ? y ? 0
A. 
B. 
C. 
D. 
Solve the problem.The Van der Waals equation provides an approximate model for the behavior of real gases. The equation is P(V, T) = 
- 
, where P is pressure, V is volume, T is Kelvin temperature, and a,b , and R are constants. Find the partial derivative of the function with respect to each variable.
A. PV = 
- 
; PT = 
B. PV = - 
+ 
; PT = 
C. PV = 
- 
; PT = 
D. PV = 
; PT = 
- 
Perform the indicated operation
Use the frequency polygon to answer the following.The frequency polygon shows the salaries of employees of a small company.
How many employees earn $40,000 or more?
A. 8 employees B. 11 employees C. 4 employees