T Tiaan New member Mar 8, 2009 #1 I have a line at points (3,1)(-5,9) I have the gradient of this as -1 and the midpoint as (-1,5) but then i need to find the perpendicular bisector is the slope just -1 or (-1/-1=1) 1 ????
I have a line at points (3,1)(-5,9) I have the gradient of this as -1 and the midpoint as (-1,5) but then i need to find the perpendicular bisector is the slope just -1 or (-1/-1=1) 1 ????
