Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 2 - 2.1 - Linear Equations in Two Variables - 2.1 Exercises - Page 170: 57

Answer

Straight line parallel to Y axis which is cutting X axis at only one point(-7,0).

Work Step by Step

Here I am using the result that m(slope of the graph) = $\frac{\Delta y}{\Delta x}$ We use the coordinates of the given points to find the slope: $m=\frac{5-2}{-7-(-7)}=\frac{3}{0}$ So, the slope is not defined. Thus, the graph is a straight line parallel to the $y$-axis which is cutting the $x$-axis at the point $(-7,0)$.
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