Find all values that make the expression undefined.
A. 0
B. -9
C. Never undefined
D. 9
Answer: C
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Make a scatter diagram for the data.The table shows the unemployment rate and the median price of renting an apartment in nine cities. 
Plot unemployment rate on the horizontal axis and median rental price on the vertical axis.
A. 
B. 
C. 
D.
| ? |
Provide an appropriate response.If xy + x = 12 and dx/dt = -3, then what is dy/dt when x = 2 and y = 5?
A. -9 B. 9 C. 3 D. -3
Perform the indicated operation.
- 
A. 
B. 
C. 
D. 
Solve the problem.Two separate tests are designed to measure a student's ability to solve problems. Several students are randomly selected to take both tests and the results are shown below. Find the equation of the least-squares regression line that models the data.
A. y ? 0.930 - 19.4x B. y ? 19.4 + 0.930x C. y ? -0.930 + 19.4x D. y ? -19.4 - 0.930x