When using a number line, what distance does a mark at 3 cm represent?

When using a number line, what distance does a mark at 3 cm represent?

• A. 1 cm
• B. 3 cm
• C. 5 cm
• D. 7 cm

Answer: (A)

In the context of a number line where distances are marked clearly, the point at 3 cm specifically represents the exact distance from the origin or starting point (typically 0 cm) to that mark. When discussing distances on a number line, each unit typically corresponds to one standard measurement unit, meaning that the mark at 3 cm indicates that if you were to measure from the starting point, you would have moved 3 units along the line. The distance labeled as "3 cm" means that if you were measuring from the point marked 0 up to the point marked 3, that span would indeed be 3 cm. Therefore, if we consider the context of this question, a mark at 3 cm does not represent any smaller distance like 1 cm nor larger distances such as 5 cm or 7 cm. It is simply a direct representation of the distance itself to that specific location on the number line, which is why understanding the definition of the measurement is key.

In the context of a number line where distances are marked clearly, the point at 3 cm specifically represents the exact distance from the origin or starting point (typically 0 cm) to that mark. When discussing distances on a number line, each unit typically corresponds to one standard measurement unit, meaning that the mark at 3 cm indicates that if you were to measure from the starting point, you would have moved 3 units along the line.

The distance labeled as "3 cm" means that if you were measuring from the point marked 0 up to the point marked 3, that span would indeed be 3 cm. Therefore, if we consider the context of this question, a mark at 3 cm does not represent any smaller distance like 1 cm nor larger distances such as 5 cm or 7 cm. It is simply a direct representation of the distance itself to that specific location on the number line, which is why understanding the definition of the measurement is key.