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 3.2 - Graphing Linear Equations Using Intercepts - Exercise Set - Page 231: 27

Answer

See graph .

Work Step by Step

Find the intercepts (set x=0, set y=0) and a check point (set a value for x, find y) $\left[\begin{array}{lll} \text {y-intercept } & \text {x-intercept} & \text {checkpoint}\\ & & \\ x=0 & y=0 & x=7\\ 0-y=7 & 2x-0=7 & 2(7)-y=7\\ y=-7 & x=7/2 & -y=-7\\ & & y=7\\ (0,-7) & (3.5,0) & (7,7) \end{array}\right]$ Plot the points and a line through them.
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