Calculus (3rd Edition)

Published by W. H. Freeman
ISBN 10: 1464125260
ISBN 13: 978-1-46412-526-3

Chapter 1 - Precalculus Review - 1.2 Linear and Quadratic Functions - Exercises: 1

Answer

Slope = 3 Y-intercept = 12 X-intercept = -4

Work Step by Step

Because the number preceding x in the formula is 3, we know that the slope of the line is 3. To find the y-intercept, we set x = 0. $y = 3(0) + 12$ $y=12$ To find the x-intercept, we set y = 0. $ (0) = 3x + 12$ Then subtract 12 from both sides. $ -12 = 3x $ And divide by 3. $ -4 = x $
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