Answer
(a). $f(x) = 6x − 4$, which is zero when $x = 2/3$ .
(b). At $x = 2/3$ there is a local minimum.
Work Step by Step
See the graph of the function for explanation.
Calculus: Early Transcendentals (2nd Edition)
by Briggs, Bill L.; Cochran, Lyle; Gillett, Bernard
Published by
Pearson
ISBN 10:
0321947347
ISBN 13:
978-0-32194-734-5
Chapter 4 - Applications of the Derivative - 4.1 Maxima and Minima - 4.1 Exercises - Page 243: 23
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