State whether the function is an exponential growth function or exponential decay function, and describe its end behavior using limits.f(x) = 
- x
A. Exponential growth function; 
f(x) = 0; 
f(x) = ?
B. Exponential decay function; 
f(x) = ?; 
f(x) = 0
C. Exponential growth function; 
f(x) = ?; 
f(x) = 0
D. Exponential decay function; 
f(x) = 0; 
f(x) = ?
Answer: A
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Provide an appropriate response.Starting with a tone having a frequency of 687 cycles per second, find the frequency of the tone that is two octaves higher.
A. 471,969 cps B. 1374 cps C. 2748 cps D. 5496 cps
Find the surface area of the circular solid. Unless otherwise specified, use 3.14 for ? and round your answer to the nearest tenth.A right circular cone with r = 9 cm, h = 5 cm(Use the formula S = ?r 
+ ?r2.)
A. 254.3 cm2 B. 78.5 cm2 C. 545.3 cm2 D. 141.3 cm2
Solve the problem. Round your answer, if appropriate.The volume of a sphere is increasing at a rate of 6 cm3/sec. Find the rate of change of its surface area when its volume is 
cm3. (Do not round your answer.)
A. 
cm2/sec
B. 12? cm2/sec
C. 3 cm2/sec
D. 2 cm2/sec
Express the sum in sigma notation.1 - 3 + 9 - 27 + 81
A. 
3k
B. 
3k + 1
C. 
D. 
3k