Math Problem Statement

Repeat the following procedure for the four given numbers.

Multiply the number by

8

Add

8

to the product. Divide this sum by 2. Subtract

4

from the quotient.

Question content area bottom Part 1 The 1st number is 22 The result is 8 Part 2 The 2nd number is 6. The result is 24. Part 3 The 3rd number is 9 The result is 36 Part 4 The 4th number is 11 The result is 44 Part 5 a. Write a conjecture that relates the result of the process to the original number selected. Represent the original number as n.

Solution

Let's break down the process step by step. The operations performed on the number nn are as follows:

  1. Multiply the number nn by 8: 8n8n
  2. Add 8 to the product: 8n+88n + 8
  3. Divide this sum by 2: 8n+82=4n+4\frac{8n + 8}{2} = 4n + 4
  4. Subtract 4 from the quotient: (4n+4)4=4n(4n + 4) - 4 = 4n

General Result:

The final result after performing these operations is 4n4n, which is four times the original number nn.

Conjecture:

Based on the above steps, the result of the process is always four times the original number. So, the conjecture can be stated as:

Conjecture: If you apply the given procedure to a number nn, the result will always be 4n4n.

Do you want further details or have any questions about this process?

Here are 5 relative questions to expand your understanding:

  1. What would the result be if the original number nn were negative?
  2. Can you reverse this process to find the original number from the result?
  3. What happens if you change the constants (like instead of adding 8, you add a different number)?
  4. How does this process relate to linear functions?
  5. Could the result of this process ever be negative if nn is positive?

Tip: When working with patterns in mathematical procedures, translating them into algebraic expressions can help identify the underlying relationships easily.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations

Formulas

4n

Theorems

-

Suitable Grade Level

Grades 6-8