Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 3 - Section 3.1 - Graphing Linear Equations in Two Variables - Exercise Set - Page 220: 22

Answer

See image .

Work Step by Step

In a plane, we define a rectangular coordinate system by drawing two perpendicular number lines, intersecting at their respective zeros. The horizontal number line is called the x-axis, and the vertical is the y-axis. The intersection of the axes is called the origin. An ordered pair corresponds to each point in the plane, with the first coordinate taken from the x-axis, and the second from the y-axis. --- Plotting $(-\displaystyle \frac{5}{2},0)$, we start at the origin, $ x=-\displaystyle \frac{5}{2}\Rightarrow$ we move 2.5 units to the left, $ y=0\Rightarrow$ and neither up nor down.... (we stay on the x-axis.)
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