1. Given the following table: f(x ) 6 4 4 3 2 4 x What is the value of f1(4)? 2. Given f(x) =2x+3, find the difference quotient f(x+h)f(x)h ,h0. h 3. The graph of the function f(x)= x^2+10x+1 3x^2+5x-9 has a horizontal asymptote. If the graph crosses this asymptote, give the xcoordinate of the intersection. Otherwise, state that the graph does not cross the asymptote. 4. Identify the location of any holes (i.e. removable discontinuities) in the graph of f(x) = -x^2+5x+6 . x^2-4x-5