Homework # 15 - Math 149
The problems on this homework must be done alone. The honor code is in effect.
First name: Last name:
1. Can you apply Rolle's Theorem to the function \(f(x) = \mid x \mid\) on the interval \( [-1, 1]\) to find an \(x\)-value \(c\) where \(f'(c) = 0\)?
a. No, because \(f\) is not continuous on \([-1, 1]\).
b. No, because \(f\) is not differentiable on \((-1, 1)\).
c. No, because \(f(1) \neq f(-1)\)
d. Yes.
2. Which of the following can't happen for a continuous function, \(f\),on a open interval \( (a,b)\)?
a. The function has no critical values on this interval.
b. The function has 10 different relative maxima on the interval.
c. The function has three different relative maxima but no relative minima on the interval.
d. Every point on the interval is both a relative maximum and a relative minimum.
e. The function has a critical point which is neither a relative maximum nor a relative minimum.
3. The minimum of \(f(x) = x^3 - 6x + 4\) on the interval \([0, 2]\) occurs at
a. \(x = 0\).
b. \(x = 1\).
c. \(x = \sqrt{2}\).
d. \(x = \sqrt{3}\).
e. \(x = 2\).