Find the numbers at which f is continuous. At which numbers is f discontinuous?f(x) = 4 tan x
A. continuous for all real numbers
B. continuous for all real numbers except x = 
where k is an odd integer
C. continuous for all real numbers except x = 
where k is an odd integer
D. continuous for all real numbers except x = 0
Answer: C
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Find a formula for the nth term of the sequence.7, -7, 7, -7, 7 (7's with alternating signs)
A. an = 7(-1)2n+1 B. an = 7(-1)2n-1 C. an = 7(-1)n+1 D. an = 7(-1)n
Evaluate the expression when x = 5, y = -2, and t = 8.x - y
A. 3 B. -3 C. -7 D. 7
Evaluate.8x2 + 3x for x = 4
A. 116 B. 76 C. 140 D. 44
Solve.Suppose that a polynomial function is used to model the data shown in the graph below.
Determine the degree of the polynomial function of best fit and the sign of the leading coefficient.
A. Degree 4; positive leading coefficient. B. Degree 5; positive leading coefficient. C. Degree 4; negative leading coefficient. D. Degree 5; negative leading coefficient.