At what points is the given function continuous?f(x, y) = 
A. All (x, y) such that x ? - y
B. All (x, y) such that x ? y
C. All (x, y) ? (0, 0)
D. All (x, y)
Answer: A
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Provide an appropriate response.Several government agencies insure the repayment of first mortgage loans, including:
A. Veterans Administration B. Federal Housing Administration C. both the Federal Housing Administration and the Veterans Administration D. Social Security Administration
Find the slope of the line that goes through the pair of points.(4, -9) and (7, 2)
A. -7
B. 3
C. Undefined
D. 3
Solve the problem.John owns a hotdog stand. He has found that his profit is represented by the equation 
, with P being profits and x the number of hotdogs. How many hotdogs must he sell to earn the most profit?
A. 40 hotdogs B. 49 hotdogs C. 39 hotdogs D. 24 hotdogs
The rectangular coordinates of a point are given. Find polar coordinates for the point.(
, 1)
A. 
B. 
C. 
D. 