At what points is the given function continuous?f(x, y) = 
A. All (x, y) such that x ? 0
B. All (x, y)
C. All (x, y) satisfying x - y ? 0
D. All (x, y) such that x ? 
and x ? -2
Answer: D
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Rewrite the statement using the if...then connective. Rearrange the wording or words as necessary.All chocolate is good.
A. Chocolate is good. B. If it isn't chocolate, then it isn't good. C. If it's good, then it's got to be chocolate. D. If it's chocolate, then it's good.
Solve.Martha can rake the leaves in her yard in 3 hours. Her younger brother can do the job in 7 hours. How long will it take them to do the job if they work together?
A. 
hr
B. 
hr
C. 
hr
D. 7 hr
The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.(0.5, 3.5) 
A. decreasing B. constant C. increasing
Evaluate the function.Find g(a + 1) when g(x) = 4x + 3.
A. 
a + 3
B. 4a + 7
C. 4a + 3
D. 4a - 1