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haleyking345

  • 3 years ago

A 2005 Jeep Wrangler that costs $30,788 new has a book value of $18,000 after 2 years. a.) Find the exponential model V= ae^kt

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  1. haleyking345
    • 3 years ago
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    Please help me!!!

  2. MATTW20
    • 3 years ago
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    ok I figured it out

  3. MATTW20
    • 3 years ago
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    first plug in all your values A=Initial V=Final k=? t=2

  4. MATTW20
    • 3 years ago
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    \[18000=30788e ^{2k}\] \[\frac{ 18000 }{ 30788 }=\frac{ 30788e ^{2k} }{ 30788 }\] \[.585=e ^{2k}\]

  5. MATTW20
    • 3 years ago
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    now to get rid of e we take the natural log of both sides \[\ln .585=\ln e ^{2k}\] \[-.536=2k\] then divide both sides by 2 and you get \[-.268=k\]

  6. MATTW20
    • 3 years ago
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    when you plug it in you get approximately 18,000. You actually get 18,013.56 but that's only because I rounded some of the numbers off .585, -.536,and -.268

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