Please help me with the last three columns!

Consider the graph of the function f below. The dashed line represents a vertical asymptote. The circles are points with integer coordinates. 10 y 5- -8 -6 -14 -2 0 a) Give the left and right limits of this functions at the various points specified. Write "inf" for co and "-inf" for -co. lim f = -inf lim inf lim f d.n.e. lim f d.n.e. b) At which of the following values of a does the limit of f exist? The choices are -8; -1; 0, 2; 4. Answer: -1 FORMATTING: If more than one of these points is correct, separate your answers with a semi-colon (;)