Calculus 10th Edition

Published by Brooks Cole
ISBN 10: 1-28505-709-0
ISBN 13: 978-1-28505-709-5

Chapter P - P.1 - Graphs and Models - Exercises: 3

Answer

The answer is graph (a)

Work Step by Step

We can deduce from the equation that we are dealing with a quadratic equation. It's quadratic since the highest power of x is two. A quadratic "parabola" ( just a fancy term for graph, don't let it scare you) has one of two shapes; it open's up either upwards or downwards. It DOESN'T look like a circle hence why we didn't choose (d). Furthermore the square ( raised to the power of two ) term has a negative co-efficient hence we know that the graph should be opening downwards. Only graph (a) satisfies the conditions hence it's the answer.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.