The basic relationship looks like this:
where ln k is the natural log of the rate constant at temperature T (in Kelvin) and Ea
is the activation energy in Joules. R is the gas constant, in this case,
8.31 J/mol·K. This equation is written
in the slope-intercept form for a straight line and is
essentially a description of how the rate constant is related to
both the activation energy and the temperature (in Kelvin). 
The constant (or
y-intercept) is a number
related to the frequency of collisions. We don't need to be
concerned with it.
A relationship like this also
enables us to determine the activation energy for a reaction by
measuring its rate at various temperatures. 
