Answer:
slope of the line is (1)
Explanation:
Set of points are R( -1, 1 ) S( 2, 4 ) and T( 6, 8 )
We have to find the slope of the line for which these points are collinear.
Since we know slope m =

for points R and S m =

=
= 1
Therefore, slope of the line is (1)