(a) Which is a point 5 units to the right of 4? (b) Which is a point 5 units to the left of 4?
Understand the Problem
The question asks to identify points on a number line based on their distances from the number 4. Specifically, it is looking for points that are 5 units away from 4, both to the right and to the left.
Answer
(a) 4 + 5 (b) 4 - 5
Answer for screen readers
(a) The point 5 units to the right of 4 is $9$.
(b) The point 5 units to the left of 4 is $-1$.
Steps to Solve
- Finding the point 5 units to the right of 4
To find the point that is 5 units to the right of 4, we need to add 5 to 4: $$ 4 + 5 = 9 $$
- Finding the point 5 units to the left of 4
To find the point that is 5 units to the left of 4, we need to subtract 5 from 4: $$ 4 - 5 = -1 $$
- Choosing the correct answers
From the options provided, we need to find which expressions equal 9 for part (a) and -1 for part (b).
(a) The point 5 units to the right of 4 is $9$.
(b) The point 5 units to the left of 4 is $-1$.
More Information
The correct choices for the questions are guided by basic arithmetic operations. This type of problem helps in understanding placement on a number line and the concept of positive and negative distances.
Tips
- Confusing right and left by adding instead of subtracting for left points or vice versa.
- Misreading the question and calculating distances incorrectly.
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