a) Given two points 
and 
in the plane how do you
find the slope of the line passing through these two points?
b) Write down the equation of the line passing through the point (3,2) with slope 1.
Suppose that the motion of an experimental object is described by the function
.
a) Find the average velocity for the time period beginning when
t=1 and lasting
(i) 0.1 s, (ii) 0.01 s, (iii) 0.001 s.
b) Find the instantaneous velocity when t=1.