Concept explainers
To find the value of coordinate of point B.

Answer to Problem 11PTTS
The value of the coordinate of point B is 4 unit to the right of the origin.
Explanation of Solution
Given information:
Point A is 7 units from zero on a number line and point B is 3 units to the left of the opposite of point A.
On the number line, the coordinate of the point on the right side of the origin is positive and on the left side of the origin it is negative.
Since, the coordinate of point B is positive so, point A must also lie on the right side of the origin.
To plot point A and B, start from zero and move 7 units to the and for point B move 3 unit to the left of the point A.
The number line showing point A and B is shown below:
From, the above graph, it can be observed that the value of the coordinate of point B is 4 unit to the right of the origin.
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