To estimate $~2(0.95)^3 -3(0.95)~$ using a local linear approximation, we need to choose an appropriate function $~f~$ and a point on $~f~$ where $~x=a\,$. What function should we choose for $~f(x)~$ and what value should we choose for $~a\,$?
$f(x)=$
[[☃ expression 1]]
$a=\,$[[☃ input-number 1]]