Question #d902d

1 Answer
Nov 18, 2016

3x+y=14

Explanation:

The line segment through the points (2,3) and (5,4):

[1]color(white)("XXX")has a mid-point at ((2+5)/2,(3+4)/2)=(3.5,3.5)

[2]color(white)("XXX")has a slope of m=(Deltay)/(Deltax)=(4-3)/(5-2)=1/3

The perpendicular bisector of this line segment:

[1]color(white)("XXX")passes through the midpoint (3.5,3.5)

[2]color(white)("XXX")has a slope of -1/m=-3

Using the slope-point form for the perpendicular
color(white)("XXX")y-3.5=(-3)(x-3.5)
or
color(white)("XXX")3x+y=14

Here is a picture to help verify the results:
enter image source here