Solve the problem.Does the graph of the function y = tan x - x have any horizontal tangents in the interval 
If so, where?
A. Yes, at x = 
, x = 
B. Yes, at x = ?
C. No
D. Yes, at x = 0, x = ?, x = 2?
Answer: D
Mathematics
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Use the graph to evaluate the limit.
f(x)
A. does not exist B. 2 C. -2 D. 0
Mathematics
Find the interval of convergence of the series.
A. -5 ? x ? 7 B. -7 < x < 7 C. 0 ? x ? 2 D. x < 7
Mathematics
Write a formula for a linear function f whose graph satisfies the conditions.Slope: 
; y-intercept: -6
A. f(x) = 
x + 6
B. f(x) = - 
x + 6
C. f(x) = 
x - 6
D. f(x) = - 
x - 6
Mathematics
Solve the problem.It costs $40 per hour plus a flat fee of $16 for a plumber to make a house call. What is an equation of the form 
for this situation?
A. y = 40x B. y = 16x C. y = 40x + 16 D. y = 16x + 40
Mathematics