# algebra

x+2y=7
2x+4y=5

are the graphs of these equations perpendicular?

1. 👍 0
2. 👎 0
3. 👁 81
asked by C
1. 2y = -x+7 ---> y = -(1/2) x + 3.5
slope m = -1/2

4y=-2x +5 ---> y = -(1/2) x + 1.25
slope m' = -1/2

the slopes are the same. Therefore they are parallel, not perpendicular.

If they had been perpendicular, you would have found m'=-1/m

1. 👍 0
2. 👎 0
posted by Damon

## Similar Questions

1. ### Algebra

I don’t understand how to solve these last three problems. Can someone please help me? Determine whether the graphs of the given equations are parallel, perpendicular, or neither. (questions 6-8) 6.) y = -2x + 3 2x + y = 7 A:

asked by BreAna on December 20, 2017
2. ### math

19. Which statement describes the relationship between the line graphs of the equations below? y=-2x+4 y=0.5x+4 A.The line graph are the same line. B.The line graph are parallel lines. C.The line graph are perpendicular lines.

asked by vincent on August 14, 2014
3. ### Algebra math

Determine whether the graphs of the equations are parallel,perpendicular,or neither Y=-x+2 Y=-x-3

asked by Baaba on December 13, 2016
4. ### Algebra

Determine whether the graphs of the equations are parallel, perpendicular, or neither. y=-x+2 y=-x-3

asked by Samuel on May 5, 2008
5. ### Math

determine whether the graphs of the following equations are parallel or perpendicular y=2/3x + 3, y=3/2x, 2x-3y=8

asked by JJ on November 12, 2016
6. ### Math

Determine if the graphs of the equations are parallel, perpendicular, or neither: 4x – 3y = 6 8x – 6y = 9

asked by kalak on November 8, 2015
7. ### Algebra

y = -7x - 9, -3y = 21x + 7 without graphing, tell whether the graphs of each pair of equations are perpendicular.

asked by sharon on July 11, 2014
8. ### Algebra HW HELP PLZ

Hello, I would like help on how to solve this. Determine whether the graphs of the given equations are parallel, perpendicular, or neither. y = x + 11. y = - x =2.

asked by ARMY on December 5, 2017
9. ### math

Determine whether the graphs of lines with the given Equations are Parallel, Perpendicular or neither. Eq#1 2X + 3Y = 4 and Eq#2 Y = - 2/3 X + 8

asked by mark on April 16, 2009
10. ### Math

Determine wheter the graphs of the given equations are parallel, perpendicular, or neither y=x+11 y=-x+2 Neither

asked by Help on December 9, 2016

More Similar Questions