To solve this question, we need to analyze the number line and identify the point represented by the red dot.

Step-by-step Solution:

1. Understand the number line:

   • The number line has markings ranging from 0 at the bottom to 1 at the top.
   • It is divided into 5 equal intervals between 0 and 1, meaning each interval represents 0.2.

2. Locate the red dot:

   • The red dot is positioned two intervals below 0.
   • Since each interval represents 0.2, moving two intervals below 0 means the point is at -0.4.

3. Correct answer: The point best represents -0.4, which corresponds to Option B.

Final Answer:

B. -0.4

Let me know if you'd like further explanation!

Related Questions:

1. How do you determine the value of a point on a vertical number line?
2. How do negative values differ from positive values on a number line?
3. Why does dividing into equal intervals simplify calculations on a number line?
4. Can the same method be applied to horizontal number lines?
5. What is the importance of labeling intervals properly when analyzing graphs?

Tip:

When dealing with a number line, always check the total range and how the intervals are divided to avoid mistakes.