Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Appendix D - Graphing Techniques - Exercises - Page 445: 4c

Answer

E

Work Step by Step

According to the rule of vertical translations, it is known that the graph of $y=f(x)+c$ is essentially the same as $y=f(x)$ except that it is shifted $c$ units upwards. Using this logic, it can be deduced that the graph of $y=\sqrt x+3$ is essentially the same as $y=\sqrt x$ except that it is shifted $3$ units upwards. We know that the graph of $y=\sqrt x$ is a curve that starts at the origin and moves to the right with a negative rate of change of gradient. Therefore, we need to find a graph that is essentially the same as the graph of $y=\sqrt x$ except that it is shifted three units up. This exact graph is found in option E.
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