For the pair of functions, find the indicated domain.f(x) = 9x + 18, g(x) = x + 5Find the domain of f ? g.
A. (-?, -7) ? (-7, ?)
B. (-?, -7] ? [-7, ?)
C. (-?, ?)
D. (-?, 7) ? (7, ?)
Answer: C
Mathematics
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Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 0.2 B. -0.2 C. 0.1 D. 3.5
Mathematics
Find the slope and the y-intercept of the line.-6x + 9y = 9
A. Slope - 
; y-intercept (0, -1)
B. Slope 
; y-intercept (0, 1)
C. Slope -1; y-intercept (0, 1)
D. Slope 1; y-intercept (0, -1)
Mathematics
Solve the equation.(8y + 1)(5y - 4) = 0
A. 
B. 
C. 
D. {7}
Mathematics
Factor the expression completely.r2n - s2n
A. (rn - sn)(rn - sn) B. (rn - sn)(rn + sn) C. n(r - s)(r + s) D. (r2 - s2)(rn + sn)
Mathematics