Secants to Tangents

Complete a table of values for the following functions

Change the value of a to get a new coordinate for B. Find a=2, 1.5, 1.3, 1.1 for each of the following functions and make a table of values. f(x)=sin(x) f(x)= f(x)= f(x)= For each function, what does the slope appear to approach as a approaches 1?