Solving Logarithmic Equations and Word Problems

The video tutorial covers the application of logarithms in solving real-world word problems, specifically focusing on a lumber company's tree harvesting plan. It explains the decay formula, how to solve exponential equations using logarithms, and how to convert decimal years into years and months. The tutorial concludes with a discussion on test expectations and encourages students to ask questions.

What is the initial amount of trees the lumber company plans to harvest?

• 1.2 million trees

• 600,000 trees

• 7% of the trees

• Half of the trees

Tags

CCSS.HSF.LE.B.5

What does harvesting 7% of the trees each year represent?

• Doubt

• Growth

• Decay

• Stability

Tags

CCSS.HSF.BF.A.2

What does the 'R' in the decay formula represent?

• The initial amount

• The rate of growth

• The rate of decay

• The time in years

Tags

CCSS.HSF-IF.C.8B

How is the base of the exponential equation determined?

• 1 minus the rate of decay

• Years multiplied by the rate

• Total trees divided by years

• Initial amount divided by 2

Tags

CCSS.HSF-IF.C.8B

What mathematical operation is used to isolate the exponential part of the equation?

• Addition

• Multiplication

• Division

• Subtraction

Tags

CCSS.HSA.REI.A.1

What is the purpose of using logarithms in this problem?

• To find the percentage of trees harvested

• To calculate the rate of growth

• To solve the exponential equation

• To determine the initial amount of trees

What does dividing 600,000 by 1.2 million simplify to?

• 0.7

• 1.2

• 600,000

• 0.5

Tags

CCSS.5.NBT.B.7

What is the final value of T in the equation?

• 10 years

• 8.5 years

• 9.55 years

• 9 years and 6 months

Tags

CCSS.7.EE.B.4A

How many years does 0.55 represent?

• 6 months

• Half a year

• 55 days

• 5 months

How is the time to harvest half of the trees expressed in the conclusion?

• 10 years

• 9.55 years

• 9 years

• 9 years and 6 months

Tags

CCSS.HSF.LE.A.4