FY24 Algebra Unit 5 Quiz 2 Teacher Edition
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Questions and Answers

What does the number 1,500 represent in the context of the radioactive isotope present after t years?

  • The result of mistakenly multiplying 1/2 by 2 to get 1 and concluding that since 1,500 × 1 = 1,500, this is the number of grams of the radioactive isotope present after 2 years
  • The number of grams of the radioactive isotope present after 2 years (correct)
  • A misinterpretation of the decay factor as a number of years
  • The number of grams of the radioactive isotope present after 1 year

What is the result of misinterpreting the decay factor as a number of years in the context of the radioactive isotope?

  • The result of mistakenly multiplying 1/2 by 2 to get 1 and concluding that since 1,500 × 1 = 1,500, this is the number of grams of the radioactive isotope present after 2 years (correct)
  • The result of misinterpreting the decay factor as a percentage of increase
  • The number of grams of the radioactive isotope present after 2 years
  • The number of grams of the radioactive isotope present after 1 year

How does a positive base in an exponential expression relate to the bee population scenario?

  • The bee population is increasing by 6% per year (correct)
  • The bee population is decreasing by 6% per year
  • The result of misinterpreting the decay factor as a percentage of increase
  • The bee population is increasing by 94% per year

What results from using the base of the exponential expression as a percentage of increase in the context of the bee population scenario?

<p>The bee population is increasing by 94% per year (C)</p> Signup and view all the answers

What does mistakenly multiplying 1/2 by 2 to get 1 and concluding that since 1,500 × 1 = 1,500 represent in the context of the radioactive isotope?

<p>A misinterpretation of the decay factor as a number of years (B)</p> Signup and view all the answers

What does misinterpreting the decay factor as a percentage of increase result in, in the context of the bee population scenario?

<p>The bee population is increasing by 94% per year (C)</p> Signup and view all the answers

What is the meaning of f(4) in the context of the operating costs function?

<p>It means the operating costs equal $1,530.20 for week 4. (D)</p> Signup and view all the answers

Which exponential equation best represents the table of earnings?

<p>y = 60,000(0.95) (A)</p> Signup and view all the answers

What is the result of mistakenly multiplying 1/2 by 2 to get 1 and concluding that since $1,500 \times 1 = $1,500 in the context of the radioactive isotope?

<p>The original number of grams of the radioactive isotope present. (A)</p> Signup and view all the answers

What does misinterpreting the decay factor as a percentage of increase result in, in the context of the bee population scenario?

<p>The final number of grams of the radioactive isotope present. (C)</p> Signup and view all the answers

What results from using the base of the exponential expression as a percentage of increase in the context of the bee population scenario?

<p>The final number of grams of the radioactive isotope present. (B)</p> Signup and view all the answers

What does the number 1,500 represent in the context of the radioactive isotope present after t years?

<p>The original number of grams of the radioactive isotope present. (B)</p> Signup and view all the answers

$f(t) = -4(t + 3)^2 + 2$ represents which type of function?

<p>Quadratic function (D)</p> Signup and view all the answers

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