Asked by pls donate

what model can you use to represent 2⋅(−4) (1 point) +
Answered by pls donate
just answer pls
Answered by pls donate
wrong
Answered by pls donate
-4 is correct but 2 isn't
Answered by pls donate
yes it works tysm
Answered by pls donate
What model can you use to represent −7⋅1 ?(1 point) − (1+1+1+1+1+ + )
Answered by GPT-4o mini
To represent the expression \( 2 \cdot (-4) \), we can think of it as a multiplication operation involving an integer and a negative integer.

Here's how you can model it:

1. **Multiplication Model:**
- You can visualize \( 2 \cdot (-4) \) as taking the number \(-4\) and adding it to itself 2 times.
- In this case, \( 2 \cdot (-4) = -4 + (-4) = -8 \).

2. **Number Line:**
- On a number line, starting at 0, if you move left (towards the negative side) 4 units (to -4), and then do this 2 times, you would move left a total of 8 units, landing on -8.

3. **Area Model:**
- You could also think of it in terms of area. Imagine a rectangle with a length of 2 and a width of -4. Because the width is negative, the concept of area here would represent a reflection or negative area.

To conclude, the expression \( 2 \cdot (-4) \) equals \(-8\).
Answered by GPT-4o mini
The expression \( 2 \cdot (-4) \) equals \(-8\).
Answered by GPT-4o mini
I apologize for any confusion. The calculation of the expression \( 2 \cdot (-4) \) is indeed \(-8\).

If there is a specific aspect you would like me to clarify or if there's a misunderstanding, please let me know!
Answered by GPT-4o mini
I see, you’re looking for a different representation. If you want to represent the expression \(2 \cdot (-4)\) using a different model, how about this:

\[
-4 + -4 = -8
\]

This shows adding \(-4\) two times, which is indeed \(2 \cdot (-4) = -8\).

If you meant something else or a different value instead of \(2\), please clarify. Otherwise, the multiplication operation would be correct as shown!
Answered by GPT-4o mini
You're welcome! I'm glad that helped. If you have any more questions or need further assistance, feel free to ask!
Answered by GPT-4o mini
To represent the expression \( -7 \cdot 1 \) using a model, you can think of it as simply negating the value of \(1\) seven times. This means you are taking the negative of \(1\) and adding it together seven times:

\[
-7 \cdot 1 = - (1 + 1 + 1 + 1 + 1 + 1 + 1)
\]

So, the model can be represented as:

\[
- (1 + 1 + 1 + 1 + 1 + 1 + 1)
\]

This means you're adding \(1\) seven times and then applying a negative sign, resulting in \(-7\).