I believe the answer that you are looking for is 69.6
Remember, an=a1(r)^(n-1) where a1=first term or where n=1 and r=commmon ratio
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a2/a1=r
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so if you have the graph, find the y value coresponding to x=1 and that is a1
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find the y value coresponding to x=2 and taht is a2, do a2/a1 to get r
so like I was saying
well, each term is 1/2 of the previous
20/40=1/2
so r=1/2
and a1=40
so

is da equation
Answer:
x=4
Step-by-step explanation:
Step-by-step explanation:
y = a(b^x)
a = initial value
If b > 0 and b < 1, then 1 - b is the decay factor.
If b > 1, then b is the growth factor.
what function has a growth factor of 3
Function 3
what function has an initial value of 2
Function 2
what function has an initial value of 0.2
Function 4 since 1/5 = 0.2
what function has an initial value of 1
Function 3
what function has a decay factor of 0.2
None. In Function 2, the decay factor is 1 - 1/5 = 0.8, not 0.2.
what functions are increasing across real numbers?
Functions 3, 4
what functions are decreasing across all real numbers?
Functions 1, 2