Posted by **Bryan** on Tuesday, December 9, 2008 at 11:32am.

What is the slope

5x+4y=4

4x+5y=8

is it -5/4 and 4/5

- Math -
**drwls**, Tuesday, December 9, 2008 at 12:10pm
Neither of your answers is right. They both have the same slope, -4/5. Rewrite each in y = mx + b form to see why

- Math -
**Cianán**, Tuesday, December 9, 2008 at 5:13pm
Sorry, I have to correct you drwls

the slope of 5x + 4y = 4 is -5/4

the slope of 4x + 5y = 8 is -4/5

- Math -
**drwls**, Tuesday, December 9, 2008 at 5:31pm
Blame my dyslexia. I misread the second one as 4y + 5x = 8 . You are right

- Math -
**drwls**, Tuesday, December 9, 2008 at 7:03pm
Thank you Cianan for catching and reporting my error. I'm sorry Bryan; I will try to be more careful in the future

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