Friday

July 25, 2014

July 25, 2014

Posted by **Anonymous** on Wednesday, April 25, 2012 at 9:12pm.

- Algebra -
**Steve**, Thursday, April 26, 2012 at 12:09amline l has slope 3, so line k haas slope -1/3

using the point-slope form of a line,

(y-8) = -1/3 (x-5)

3y-24 = 5-x

3y = 29-x

so, if (2,y) is on the line,

3y = 29-2 = 27

y = 9

Or, without quite so much algebra, knowing that line k has slope 1/-3, we know that y increases by 1 when x decreases by 3.

going from (5,8) to (2,y), x has decreased by 3, so y increases by 1, from 8 to 9.

**Related Questions**

Algebra - Find the slope of any line perpendicular to the line through the ...

math - graph the line with slope 1/2 passing through the point(-5,-2) find the ...

algebra - Find the slope of any line perpendicular to the line through points (0...

Math(word problem) - For the line joining points A(-1, 3) and B(5, 7): a.Find ...

Geometry - Write an equation for the line perpendicular to line XY that contains...

Geometry - How do I write an equation of a line perpendicular to the graph of -...

math, correction - bobpursley. i'm still questioning the problem states find the...

math correction - Find the slope of any line perpendicular to the line through ...

math plz - hi, is there an equation to finding the perpendicular bisector of a ...

algebra 3 - what is the equation of the line with {3,3} and is perpendicular to ...