What is the slope of the line that passes through points (1,2) and (3,5)
2/3
3/2
-2/3
-1/2
what is the slope of the perpendicular line y=1/2x that passes through point 1,3
y - 3 = -2 (x - 1 )
y - 3 = 1/2 (x - 1 )
y - 1 = -2 (x - 3 )
y - 1 = -1/2 (x - 3 )