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Pre Calculus Ch 1 Problems

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Chapter 1 Problem Set
Part Two [ DUE Thursday, September 6th, 2018 @ 9:05 AM]
๎œฎ๎๎๎€ƒ๎‚๏ˆบ๎”๏ˆป ๎€ƒ๎ตŒ ๎€ƒ๎ด๎”
๎ฌถ
๎ต† ๎” ๎ต… ๎ณ๎‡ค๎€ƒ๎€ƒ๎œจ๎…๎Š๎€๎€ƒ๎๎„๎๎€ƒ๎‚๎‹๎ˆ๎ˆ๎‹๎“๎…๎Š๎ƒ๎€ƒ๎…๎Š๎€ƒ๎๎…๎‰๎Œ๎ˆ๎๎๎๎€ƒ๎‚๎‹๎Ž๎‰๎‡ค
๎‚๏ˆบ๎ด๏ˆป
= 7
๎‚๏ˆบ๎” ๎ต… ๎ด๏ˆป= ๎ด๎”๎ด๎€ƒ
๎ทก
๎ต…
๎น๎” ๎ต… ๎น
๎‚๏ˆบ๎ด๏ˆป๎€ƒ๎ต… ๎€ƒ๎‚๏ˆบ๎” ๎ต… ๎ด๏ˆป
๎ตŒ ๎ด๎”๎ด๎€ƒ
๎ทก
๎ต… ๎น๎” ๎ต… ๎ณ๎ถ
๎ด๎‚๏ˆบ๎”๏ˆป
=๎ถ๎”๎ด
๎ท 
+2x+1
๎œจ๎…๎Š๎€๎€ƒ๎๎„๎๎€ƒ๎€๎‹๎‰๎œฝ๎…๎Š๎€ƒ๎‹๎‚๎€ƒ๎๎œฝ๎œฟ๎„๎€ƒ๎‚๎‘๎Š๎œฟ๎๎…๎‹๎Š๎€ƒ๎œพ๎๎ˆ๎‹๎“๎‡ค๎€ƒ๎€ƒ๎œท๎๎๎€ƒ๎…๎Š๎๎๎Ž๎’๎œฝ๎ˆ๎€ƒ๎Š๎‹๎๎œฝ๎๎…๎‹๎Š๎‡ค
๎‚๏ˆบ๎”๏ˆป ๎ตŒ
๎Žพ
๎ด๎” ๎ต† ๎ต
D=
๏ˆพ
๎ด๎ˆ€๎ต๎‡ก ๎Žป
๏ˆฟ
๎‚๏ˆบ๎”๏ˆป ๎ตŒ
๎ท
๎ด ๎ต†
๎Žพ
๎” ๎ต† ๎ณ
D=
๏ˆพ
๎ณ๎‡ก๎ท
๏ˆฟ
๎—ซ ๏ˆบ๎ท๎‡ก ๎Žป๏ˆป
๎‚๏ˆบ๎”๏ˆป ๎ตŒ
๎ต๎”
๎”
D= ๏ˆบ๎ต†๎Žป๎‡ก ๎ฒ๏ˆป๎€ƒ๎—ซ ๏ˆบ๎ฒ๎‡ก ๎Žป๏ˆป
๎œฅ๎‹๎Š๎๎…๎€๎๎Ž๎€ƒ๎๎„๎๎€ƒ๎‚๎‹๎ˆ๎ˆ๎‹๎“๎…๎Š๎ƒ๎€ƒ๎Œ๎…๎๎œฟ๎๎“๎…๎๎๎€ƒ๎‚๎‘๎Š๎œฟ๎๎…๎‹๎Š๎€ƒ๎œฝ๎Š๎€๎€ƒ๎๎’๎œฝ๎ˆ๎‘๎œฝ๎๎๎€ƒ๎๎„๎๎€ƒ๎๎Œ๎๎œฟ๎…๎‚๎…๎๎€๎€ƒ๎‚๎‘๎Š๎œฟ๎๎…๎‹๎Š๎€ƒ๎’๎œฝ๎ˆ๎‘๎๎
๎‚๏ˆบ๎ต†๎ณ๎ฒ๏ˆป= 150
๎‚๏ˆบ๎ฒ๏ˆป= 0
๎‚๏ˆบ๎ต†๎ด๏ˆป=-8/7
The population of Sasquatch in Portage County can be modeled by the function ๎œฒ๏ˆบ๎๏ˆป ๎ตŒ
๎ฌต๎ฌน๎ฌด๎ฏง
๎ฏง๎ฌพ๎ฌต๎ฌน
where t represents the number of years since 1600. Find and interpret the following
๎œฒ๏ˆบ๎ฒ๏ˆป
P=0
๎œฒ๏ˆบ๎ณ๎ฒ๏ˆป
P=6
Domain
(0,๎Žป๏ˆป
๎œฎ๎๎๎€ƒ๎‚๏ˆบ๎”๏ˆป ๎€ƒ ๎ตŒ ๎€ƒ ๎”
๎ฌท
๎ต… ๏ˆบ๎” ๎ต… ๎ด๏ˆป
๎ฌถ
๎ต… ๎ณ๎€ƒ๎œฝ๎Š๎€๎€ƒ๎ƒ๏ˆบ๎”๏ˆป ๎ตŒ ๎” ๎ต… ๎ณ๎‡ค๎€ƒ๎€ƒ๎œจ๎…๎Š๎€๎€ƒ๎๎„๎๎€ƒ๎‚๎‹๎ˆ๎ˆ๎‹๎“๎…๎Š๎ƒ๎€ƒ๎…๎Š๎€ƒ๎๎…๎‰๎Œ๎ˆ๎๎๎๎€ƒ๎‚๎‹๎Ž๎‰๎‡ค
๎‚๏ˆบ๎ƒ๏ˆบ๎”๏ˆป๏ˆป=๎”๎ต
๎ท 
+x^2+10
๏ˆบ๎‚ ๎ต… ๎ƒ๏ˆป๏ˆบ๎”๏ˆป=x^3+x^2+x+10
๎ฏ™
๎ฏš
๏ˆบ๎”๏ˆป=x^3+x^2+4/x

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๎œจ๎…๎Š๎€๎€ƒ๎œฝ๎Š๎€๎€ƒ๎๎…๎‰๎Œ๎ˆ๎…๎‚๎•๎€ƒ๎๎„๎๎€ƒ๎€๎…๎‚๎‚๎๎Ž๎๎Š๎œฟ๎๎€ƒ๎๎‘๎‹๎๎…๎๎Š๎๎€ƒ๎‚๎‹๎Ž๎€ƒ๎๎„๎๎€ƒ๎‚๎‘๎Š๎œฟ๎๎…๎‹๎Š๎€ƒ๎‚๏ˆบ๎”๏ˆป ๎ตŒ ๎ด๎”
๎ฌถ
๎ต… ๎”.
2h+4x+1
Write a rule for the piecewise function
Describe one interval where f(x) is constant
(-2,4)
Describe one interval where f(x) is increasing
(-2,2)
Describe one interval where f(x) is decreasing
(1,-1)
Use the function below for the following exercises

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Name Chapter 1 Problem Set Part Two [ DUE Thursday, September 6th, 2018 @ 9:05 AM] ๐ฟ๐‘’๐‘ก ๐‘“(๐‘ฅ) = 2๐‘ฅ 2 โˆ’ ๐‘ฅ + 1. ๐น๐‘–๐‘›๐‘‘ ๐‘กโ„Ž๐‘’ ๐‘“๐‘œ๐‘™๐‘™๐‘œ๐‘ค๐‘–๐‘›๐‘” ๐‘–๐‘› ๐‘ ๐‘–๐‘š๐‘๐‘™๐‘’๐‘ ๐‘ก ๐‘“๐‘œ๐‘Ÿ๐‘š. ๐‘“(2) ๐‘“(๐‘ฅ + 2)= 2๐‘ฅ2ฬ‚ 7๐‘ฅ + 7 =7 ๐‘“(2) + ๐‘“(๐‘ฅ + 2) = 2๐‘ฅ2ฬ‚ + 7๐‘ฅ + 14 + 2๐‘“(๐‘ฅ) ฬ‚ =4๐‘ฅ2+2x+1 ๐น๐‘–๐‘›๐‘‘ ๐‘กโ„Ž๐‘’ ๐‘‘๐‘œ๐‘š๐‘Ž๐‘–๐‘› ๐‘œ๐‘“ ๐‘’๐‘Ž๐‘โ„Ž ๐‘“๐‘ข๐‘›๐‘๐‘ก๐‘–๐‘œ๐‘› ๐‘๐‘’๐‘™๐‘œ๐‘ค. ๐‘ˆ๐‘ ๐‘’ ๐‘–๐‘›๐‘ก๐‘’๐‘Ÿ๐‘ฃ๐‘Ž๐‘™ ๐‘›๐‘œ๐‘ก๐‘Ž๐‘ก๐‘–๐‘œ๐‘›. ๐‘“(๐‘ฅ) = โˆš2๐‘ฅ โˆ’ 3 D=[2/3, โˆž] ๐‘“(๐‘ฅ) = 5 2 โˆ’ โˆš๐‘ฅ โˆ’ 1 D=[1,5] โˆช (5, โˆž) 3๐‘ฅ ๐‘ฅ D= (โˆ’โˆž, 0) โˆช (0, โˆž) ๐‘“(๐‘ฅ) = ๐ถ๐‘œ๐‘›๐‘ ๐‘–๐‘‘๐‘’๐‘Ÿ ๐‘กโ„Ž๐‘’ ๐‘“๐‘œ๐‘™๐‘™๐‘œ๐‘ค๐‘–๐‘›๐‘” ๐‘๐‘–๐‘’๐‘๐‘’๐‘ค๐‘–๐‘ ๐‘’ ๐‘“๐‘ข๐‘›๐‘๐‘ก๐‘– ...
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