please help with the questions below

Amistad High School Name AP Calculus/ECE Calculus Summer Review Packet Score Period Topic A: Functions 1 . ) If f (x ) = 4x -x2, find: c. ) f ( x th) - f (x ) 2h 2 2. ) If V (r) = - mrs, find: 3 11936 a.) V b . ) V ( r + 1 ) - V (r-1) V ( 2r ) All C.) V (r ) 3. ) 3.) If f (x ) and g (x) are given in the graph, find: a . ) (f - 8) (3 ) b . ) f (8 ( 3 ) ) 4.) Fi the -X, x