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# (5 points) Letf(r) = ~x" 9x' + 4x ~ 6. Find the open intervals on which f is concave up (down}; Then determine the x-coordinates of all inflection points ...

## Question

###### (5 points) Letf(r) = ~x" 9x' + 4x ~ 6. Find the open intervals on which f is concave up (down}; Then determine the x-coordinates of all inflection points of f.f is concave up on the intervals2 f is concave down on the intervalsThe inflection points occur at X =

(5 points) Letf(r) = ~x" 9x' + 4x ~ 6. Find the open intervals on which f is concave up (down}; Then determine the x-coordinates of all inflection points of f. f is concave up on the intervals 2 f is concave down on the intervals The inflection points occur at X =

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