Solve the problem.The table below summarizes the construction cost of a set of homes (excluding the lot cost) along with the square footage of the home's floor space. Find a linear equation that relates the construction cost in thousands of dollars to the floor space in hundreds of square feet by finding the least squares line for the data.
A. y = 8.13x - 12.79
B. y = 7.87x - 13.08
C. y = 8.13x
D. y = 7.97x - 13.54
Answer: D
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Simplify.
A. 
B. 
C. 
D. 
A mail truck must deliver packages to 5 different homes (A, B, C, D, and E). The trip must start and end at A. The graph below shows the distances (in miles) between locations. We want to minimize the total distance traveled.
The repetitive nearest-neighbor tour starting with vertex A is given by:
A. A, C, D, B, E, A. B. A, B, C, D, E, A. C. A, D, B, E, C, A. D. A, E, C, D, B, A. E. none of these
Determine whether the ordered pair is a solution of the system of linear equations.(-1, 2);
A. Yes B. No
Find the domain of the function h.h(x) = 
A. {x| x is a real number and x ? -9 and x ? -7 and x ? 7} B. {x| x is a real number and x ? 9 and x ? -7 and x ? 7 and x ? 0} C. {x| x is a real number and x ? -7 and x ? 7} D. {x| x is a real number and x ? 0}