Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.1 - Graphs and Graphing Utilities - Exercise Set - Page 160: 62


A point can be plotted by moving the units given in the coordinates, in the required direction from the origin.

Work Step by Step

We know that in the rectangular system of coordinates, an ordered pair is $\left( x,y \right)$, where the number written on the left is the x coordinate and the one written on the right is the y coordinate. When the x coordinate is positive, it will be plotted on the right side of the vertical axis and when it is negative, it will be plotted on the left. Similarly, if the y coordinate is positive, it will be plotted above the horizontal axis and when it will be negative, it will be plotted below it. Thus, by moving left or right and above or below the origin, we can plot any given point.
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