Use the definition of continuity to determine whether f is continuous at a.f(x) = 
a = 0
A. Not continuous
B. Continuous
Answer: A
Mathematics
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Tell whether or not the relation is a function.{(-7,-7), (-7,-5), (-1,-6), (6,-1), (10,-7)}
A. Yes B. No
Mathematics
Perform the indicated operation. Write the result in the form a + bi.(9 - 3i)(2 + 4i)
A. 30 - 30i B. 30+ 30i C. 42 + 6i D. 6 - 42i
Mathematics
Divide and simplify.
A. 7x + 9 - 
B. 7x - 4
C. 7x2 + 9x - 
D. 42x + 54 - 
Mathematics
Give the largest interval where the function increases or decreases, as requested.f(x) = (x + 3)2 + 3; decreases
A. (3, ?) B. (3, 0) C. (0, -3) D. (-?, -3)
Mathematics