Determine the points at which the function is discontinuous. f(x) = 
A. (-?, -8)
B. -8
C. (-?, -8]
D. None
Answer: B
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The rate of change of a linear function depends on the variable of the function.
Answer the following statement true (T) or false (F)
Solve.When interest is compounded continuously, the balance in an account after t years is given by 
, where P0 is the initial investment and k is the interest rate. Suppose that P0 is invested in a savings account where interest is compounded continuously at 2% per year. Express P(t) in terms of P0 and 0.02.
A. P(t) = (P0)0.02t B. P(t) = P0e2t C. P(t) = P0e0.02 D. P(t) = P0e0.02t
Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (cos x)x
A. ln x(cos x)x - 1 B. ln cos x - x tan x C. (cos x)x (ln cos x - x tan x) D. (cos x)x (ln cos x + x cot x)
Factor, if possible.u2 - 8u + 15
A. (u - 5)(u - 3) B. (u + 5)(u - 3) C. (u + 5)(u + 3) D. (u - 5)(u + 3)