The slope of the line is 
Explanation:
The points are
and 
We need to find the slope of the line that contains the points
and 
The slope of the equation can be determined using the formula,

Substituting the points
and
in the slope formula, we have,

Simplifying the expression, we have,

Adding the terms in both numerator and denominator, we have,

The slope of the line that contains the points
and
is 
Thus, the slope of the line is 