Concept explainers
To obtain: the addition implied by the given coordinates on the number line
Answer to Problem 2OE
The addition operation illustrated in the given number line is
Explanation of Solution
Given Information: A number line with given coordinates and distance marked on it.
A number line is used to graphically represent numbers along a line. It consists of 0 as the center point. The positive numbers are marked to the right and negative numbers are marked to the left side of the center point.
In the given figure which is redrawn here along with the position in terms of units, it can be seen that,
(1) 2 units are marked from center point to left representing -2
(2) 6 units are marked from the previous point to right making the final position to be 4.
This implies that adding the two units marked in left to 6 units yields 4 units on the right side of center point, which can be expressed as,
Chapter 2 Solutions
Algebra: Structure And Method, Book 1
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