Solve Logarithmic Equations with Logs on Both Sides

Solve Logarithmic Equations with Logs on Both Sides

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to solve a logarithmic equation using the one-to-one property of logarithms. It begins by introducing the equation and the concept of the one-to-one property, which states that if two logarithms with the same base are equal, their arguments must also be equal. The tutorial then demonstrates solving the resulting linear equation using inverse operations, leading to the final solution. The video concludes by summarizing the steps and confirming the solution.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the one-to-one property of logarithms state?

If two logarithms have the same base, their arguments must be equal.

Logarithms with different bases can be equated.

Logarithms are only defined for positive numbers.

The base of a logarithm can be any positive number.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving the equation log base 5 of (4X - 7) = log base 5 of (X + 5)?

Subtract X from both sides.

Multiply both sides by 5.

Set the arguments of the logarithms equal to each other.

Add 7 to both sides.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After equating the arguments of the logarithms, what type of equation do we get?

Linear equation

Polynomial equation

Exponential equation

Quadratic equation

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What operation is used to isolate the variable X in the equation 3X = 12?

Addition

Subtraction

Multiplication

Division

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the solution for X in the equation 3X = 12?

X = 4

X = 6

X = 3

X = 5