( a ) Approximate the definition of the derivative with small values of h . ( b ) Use a graphing calculator to zoom in on the function until it...

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( a ) Approximate the definition of the derivative with small values of h ."( b ) Use a graphing calculator to zoom in on the function until it appears to be a straight line , and then find the slope of that line .F ( X ) = 9 X 1 1x ; a = 4( a ) Select the correct choice and , if necessary , fill in the answer box to complete your choice .OA. (" ( a ) =( Round to four decimal places as needed . )OB. I' ( a ) does not exist .(6) The graph to the right has a window of 1 3. 99 , 4 . 01 , 0. 00 1] by [ 12. 72292 , 12. 73292 , 0. 001] . The displayed points , rounded to five decimal places , are ( 4 , 12. 72792 ) and ( 4. 005 ,12. 72639 ) .QThe slope of the line is approximately*( Round to four decimal places as needed . )