Posted by **Marissa** on Thursday, November 18, 2010 at 7:23pm.

Write the equation of the prpendicular bisector of the line segment AB with endpoints A(1,1) and B(7,5). Write the answer in slope-intercept form.

- Algebra -
**Reiny**, Thursday, November 18, 2010 at 7:50pm
first you need the midpoint of the line segment

which is (4,3)

now find the slope of the given line which is 2/3

so the slope of the perpendicular is -3/2

equation:

y = (-3/2)x + b

but you know (4,3) lies on it , so

3= (-3/2)(4) + b

3 = -6 + b

b = 9

y = (-3/2)x + 9

## Answer this Question

## Related Questions

- math - Write the equation of the perpendicular bisector of the line segment AB ...
- Geoemetry - Write an equation in point slope form for the perpendicular bisector...
- math - i have more than one question so if u no any of the answers please tell ...
- algebra[please check] - in questions 1 and 2, write an equation of the line in ...
- precalculus - write an equation in general form... the perpendicular bisector of...
- Quick math help - My math exam is coming up Friday and I need help!! Can you ...
- Math -Precal 11 - Show that the point P(7,7) is on the perpendicular bisector of...
- Algebra/geometry - Find te equation in slope-intercept form of the line that is...
- Algebra - Find the equation in slope-intercept form of the line that is the ...
- math - A perpendicular bisector is a segment which is perpendicular to another ...