Determine whether the sequence is arithmetic. If so, find the common difference.
2, 7, 12, 17, 22
A. -5
B. -3
C. 5
D. not arithmetic
E. 2
Answer: C
Mathematics
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Find an equation for the described linear function.Through (0, -4) and perpendicular to 
A. y = -x + 4 B. y = x - 4 C. y = x + 4 D. y = -x - 4
Mathematics
Determine the domain of the function.r(x) = 
A. {x| x ? 6 and x ? 8} B. {x| x ? -6 and x ? -8} C. {x| x ? 5 and x ? -4} D. {x| x ? -5 and x ? 4}
Mathematics
For the given functions f and g, find the requested composite function value.f(x) = 
, g(x) = x2 + 9;
Find (g ? f)(-2).
A. 
B. 
C. 25
D. 13
Mathematics
Graph.f(x) = 
x - 1
A. 
B. 
C. 
D. 
Mathematics