Notes: In the first two, your answer should either be a single interval, such as

Question

Notes: In the first two, your answer should either be a single interval, such as (0,1), a comma separated list of intervals, such as (-inf, 2), (3,4), or the word "none".

I just need the answers

1.   is increasing on the intervals 2.   is decreasing on the intervals 3.   The relative maxima of occur at = 4.   The relative minima of occur at = Let f(x) = 2 x - 2x for x > 0. Find the open intervals on which f is increasing (decreasing). Then determine the x -coordinates of all relative maxima (minima). In the first two, your answer should either be a single interval, such as (0,1), a comma separated list of intervals, such as (-inf, 2), (3,4), or the word "none". In the last two, your answer should be a comma separated list of x values or the word "none".

Explanation / Answer

1. (0, 0.25) [first derivative > 0]

2. (0.25, inf) [first derivative < 0]

3. 0.25 [second derivative < 0]

4. none

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