Find dy/dx and d2y/dx2, and find the slope and concavity (if possible) at the given value of the parameter. (If an answer does not exist, enter DNE.) Parametric Equations      Point x =    t ,  y = 6t − 7   t = 4 dy dx  =  12√t   d2y dx2  =      slope       concavity:

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Find

dy/dx and d2y/dx2,

and find the slope and concavity (if possible) at the given value of the parameter. (If an answer does not exist, enter DNE.)

Parametric Equations      Point
x = 
  t
,  y = 6t − 7
  t = 4
dy
dx
 = 
12t
 
d2y
dx2
 = 
 
 
slope  
 
 



concavity:

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