$y=(7+x)^{(7+x)^2}$
${y}'=(7+x)^{(7+x)^2}$$(1+ln(7+x)^{(7+x)^2)}$)
$
${y}'=(7+x)^2$$(7+x)^{(7+x)^2-1}$
Derivative does not exist
At the point where , is increasing or decreasing, and is it concave up or down?
Decreasing, concave up
Increasing, concave up
Increasing, concave down
Decreasing, concave down
There is no concavity at that point.
, is 
increasing or decreasing, and is it concave up or down?