College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 2 - Functions and Graphs - Exercise Set 2.3 - Page 255: 2


$3$; the line through the points rises

Work Step by Step

Simply apply the points to the slope formula and then simplify. Since the answer is positive, the line through the points rises. $(2,1)$ and $(3,4)$ $\frac{y_2-y_1}{x_2-x_1}$ $\frac{4-1}{3-2}$ $\frac{3}{1}$ $3$
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