Evaluate the function.r(x) = -
; r(1)
A. 4
B. 3
C. 1
D. -3
Answer: D
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Graph the function as a solid curve and its inverse as a dashed curve.f(x) = 2 - x2, x ? 0 
A. 
B. 
C. 
D. 
Find the nth term {an} of the geometric sequence. When given, r is the common ratio.3, - 
, 
, - 
, 
, ...
A. an = 3 ? 
n-1
B. an = 3 ? 
n + 1
C. an = 3 ? 
n
D. an = 3 ? 
n-1
Simplify the exponential expression. Assume that variables represent nonzero real numbers.
A. 
B. 
C. 
D. 
Solve the problem.A gas station sells 4820 gallons of regular unleaded gasoline on a day when they charge $1.35 per gallon, whereas they sell 3965 gallons on a day that they charge $1.40 per gallon. Find a linear function that expresses gallons sold as a function of price.
A. G(p) = -17,100p + 27,883.2 B. G(p) = -17,100p + 27,921 C. G(p) = -17,100p + 27,905 D. G(p) = -17,100p + 27,888.8