Step 1: Understanding the Concept:
The question asks to find which of the given numbers has the greatest distance from the number 1 on the number line. The distance between two numbers on a number line is the absolute value of their difference.
Step 2: Key Formula or Approach:
The distance between two numbers, a and b, is given by the formula:
\[ \text{Distance} = |a - b| \]
We will calculate the distance of each option from 1 and find the largest value.
Step 3: Detailed Explanation:
Let's calculate the distance for each option from the number 1.
(A) Distance between -10 and 1:
\[ |-10 - 1| = |-11| = 11 \]
(B) Distance between -5 and 1:
\[ |-5 - 1| = |-6| = 6 \]
(C) Distance between 0 and 1:
\[ |0 - 1| = |-1| = 1 \]
(D) Distance between 5 and 1:
\[ |5 - 1| = |4| = 4 \]
(E) Distance between 10 and 1:
\[ |10 - 1| = |9| = 9 \]
Now, we compare the calculated distances: 11, 6, 1, 4, and 9. The largest value is 11.
Step 4: Final Answer:
The number with the greatest distance from 1 is -10, with a distance of 11 units. Therefore, the correct answer is (A).