Solving Logarithmic Equations Across Different Bases

Solving Logarithmic Equations Across Different Bases

Assessment

Interactive Video

Mathematics

6th - 10th Grade

Hard

Created by

Ethan Morris

FREE Resource

This video tutorial focuses on solving logarithmic equations with different bases. It introduces the change of base formula and demonstrates its application through examples, such as evaluating log base 9 of 27 using base 3. The tutorial covers solving equations with different bases, including complex problems, and provides step-by-step solutions. It also explains the use of synthetic division and the quadratic formula in solving polynomial equations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the change of base formula for logarithms?

log_a(b) = log_a(b) * log_b(a)

log_a(b) = log_b(a) * log_a(c)

log_a(b) = log_b(a) / log_b(c)

log_a(b) = log_c(b) / log_c(a)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of converting log base 9 of 27 to a different base using the change of base formula?

3/2

27/9

2/3

9/27

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you evaluate log base 9 of 27 using the change of base formula?

log_9(27) * log_27(9)

log_27(9) / log_27(3)

log_27(9) / log_9(3)

log_3(27) / log_3(9)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you solve for x when given log base 3 of x - 2 equals log base 27 of 4x + 7?

Using the change of base formula

By using synthetic division

By converting to exponential form

By factoring the equation

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What property allows you to move a constant in front of a log to the exponent position?

Property of bases

Property of equality

Property of logarithms

Property of exponents

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What base is used to simplify the equation log base 8 of 16 plus log base 2 of x equals 10 over 3?

Base 16

Base 8

Base 2

Base 10

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct way to simplify log base 8 of 16 using base 2?

log_2(16) / log_2(8)

log_8(2) / log_16(8)

log_16(8) / log_2(16)

log_8(16) * log_16(8)

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