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SAT Math Videos 355 videos

SAT Math 2.1 Geometry and Measurement
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SAT Math 9.4 Algebra and Functions

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Identifying Exponential Patterns in a Data Set 4 Views


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Description:

The table above estimates the population increase of a colony of bacteria over the course of five years. Which of the following best characterizes the model for this colony's total population over time?


Transcript

00:00

Yeah Whoa Okay It's a team match Members last in

00:05

this series We're looking at a chart here years and

00:09

I need anyone thing a population increase Wow They're growing

00:13

pretty fast there Well the table above shows the yearly

00:15

population increase of a country that clearly has no birth

00:18

control Which of the following best characterizes the model for

00:22

this country's total population over time Well let's think about

00:29

this This country was unpopular to start so there were

00:33

zero people there Then the population increase of five million

00:36

in nineteen ninety like everyone migrated there gave the country

00:40

five million more people The next year they were ten

00:43

million more people so a total of fifteen million gained

00:46

so far My goodness that's a big oppel Population increase

00:50

goes like five ten fifteen twenty twenty five Total population

00:54

is five fifteen thirty fifty seventy five Kind of taking

00:57

a little bit so the total population is exponentially increasing

01:02

But that's not quite exponentially interesting but at least we're

01:05

through with this problem So yeah the answer is a 00:01:08.49 --> [endTime] exponential growth

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