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Four curves are graphed on a coordinate plane. The x-axis is labeled Time in Days and ranges from 0 to 6 in increments of 1. The y-axis is labeled Population and ranges from 0 to 25 in increments of 5.
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The first curve is solid and is labeled Option 1. The first curve passes through approximate coordinates left parenthesis 0 comma 3 right parenthesis, left parenthesis 3 comma 0 right parenthesis, and left parenthesis 6 comma 0 right parenthesis. The second curve is dotted and is labeled Option 2. The second curve passes through approximate coordinates left parenthesis 0 comma 3 right parenthesis, left parenthesis 1 comma 4 right parenthesis, and left parenthesis 5 comma 9 right parenthesis. The third curve is dot-dashed and is labeled Option 3. The third curve passes through approximate coordinates left parenthesis 0 comma 3 right parenthesis, left parenthesis 1 comma 2 right parenthesis, and left parenthesis 5 comma 1 right parenthesis. The fourth curve is dashed and is labeled Option 4. The fourth curve passes through approximate coordinates left parenthesis 0 comma 3 right parenthesis, left parenthesis 0.5 comma 15 right parenthesis, and left parenthesis 0.75 comma 25 right parenthesis.
The function f(x)=3(1.25)x
represents the population growth of a swarm of fruit flies. Create a graph modeling the equation, and determine which graph models the situation accurately.
(1 point)
Option #4
Option #1
Option #2
Option #3
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Option #2
Reason: f(0)=3, f(1)=3(1.25)=3.75 ≈4, f(5)=3(1.25)^5 ≈9.16 ≈9. The dotted curve (Option 2) rises slowly from 3 to about 4 at x=1 and about 9 at x=5, matching the exponential model.
Reason: f(0)=3, f(1)=3(1.25)=3.75 ≈4, f(5)=3(1.25)^5 ≈9.16 ≈9. The dotted curve (Option 2) rises slowly from 3 to about 4 at x=1 and about 9 at x=5, matching the exponential model.
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