$\"\"$

The points are Q $\"\"$ and R $\"\"$ .

The slope of the line passing through the points $\"\"$ is $\"\"$ .

$\"\"$ (Slope formula)

$\"\"$ (Substitute: $\"\"$ ) $\"\"$

$\"\"$ (Subtract: $\"\"$ )

$\"\"$ (Divide: $\"\"$ )

So, the slope is $\"\"$ .

$\"\"$

The slope of the line passing through the points Q and R is $\"\"$ .