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Let f(m) : $3 7 51'2 + 6:): i 2. Find the open intervals on which f is concave up (down). Then determine the cit-coordinates of all inflection points of f. 1. f is concave up on the intervals 2. f is concave down on the intervals 3. The inection points occur at a: = 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". In the last one, your answer should be a comma separated list of a: values or the word "none". Let m) : :52 + 7x 7 18. Find the open intervals on which 1' is concave up (down). Then determine the m-coordinates of all inection points of f. 1. f is concave up on the intervals 2. f is concave down on the intervals 3. The inection points occur at m = 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". In the last one, your answer should be a comma separated list of a: values or the word "none". Let f(w) = 8 2 + 5 . Find the open intervals on which f is concave up (down). Then determine the alt-coordinates of all inflection points of f. :1: 1. f is concave up on the intervals 2. f is concave down on the intervals 3. The inection points occur at m = 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". In the last one, your answer should be a comma separated list of :n values or the word "none"