Please explain in detail

The graph of a function f is shown below. You can click and drag on the graph to pan the graphing view. 8 y fac 4 3 Use the graph to evaluate the following expressions: a. f ( 4) = Preview b . f ' ( 2 ) = Preview c. f 1( - 2 ) = Preview d. f (f(344)) = Preview Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 213, 5+4) Enter DNE for Does Not Exist, oo for Infinity Box 2: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 213, 5+4) Enter DNE for Does Not Exist, oo for Infinity Box 3: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 213, 5+4) Enter DNE for Does Not Exist, oo for Infinity Box 4: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 213, 5+4) Enter DNE for Does Not Exist, oo for Infinity