Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 4 - Quadratic Functions - 4.1 Quadratic Functions and Parabolas - 4.1 Exercises - Page 301: 24

Answer

Horizontal intercept: $(4,0)$ Vertical intercept: $(0,80)$

Work Step by Step

We know that the graph of a parabola crosses the $x$ axis at the horizontal intercept where the $y$ value is zero. Hence, we can read the horizontal intercept directly from the table as $(4,0)$. Similarly, at the vertical intercept, the value of $x$ is zero. The vertical intercept is $(0,80)$.
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