Use a sign chart to determine the intervals on which $f ( x ) = ( x + 3 ) ^ { 4 }$ is concave up and concave down, and identify the locations of any inflection points.

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The Answer of Use a sign chart to determine the intervals on which $f ( x ) = ( x + 3 ) ^ { 4 }$ is concave up and concave down, and identify the locations of any inflection points.

Use a Sign Chart to Determine the Intervals on Which f(x)=(x+3)4f ( x ) = ( x + 3 ) ^ { 4 }f(x)=(x+3)4

Use a Sign Chart to Determine the Intervals on Which $f ( x ) = ( x + 3 ) ^ { 4 }$