Question

Select "Growth" or "Decay" to classify each function.

Function Growth Decay
y=200(0.5)^2t
y=1/2(2.5)^t/6
y=(0.65)^t/4

Which equation can be used to find the solution of (1/3)^d−5 = 81 ?

A. −d−5=4

B. d + 5 = 4

C. d−5=4

D. −d+5=4

Answer 1

for part 1) if the number inside the parentheses is bigger than 1 it is growth and if it is smaller than 1 it is decay

Answer 2

for part 2) re-write 81 as a power of (1/3)

(1/3)^x = 81

solve for x

Answer 3

x = -4

Answer 4

@Vocaloid