+0

+8
821
3

http://web2.0calc.com/questions/9x-3y-0_1

Jan 8, 2015

#1
+13

Here's the answer to this one, shania....

9x+3y=0

-36x-12y=0

This set of equations wiill have infinite answers because they are actually the same........multiply the top equation by -4 and we have -36x - 12y  = 0 ......which is just the second equation in disguise.....

[ BTW,,,if you take Linear Algebra, you will discover that the determinant of this system = 0  ....which means that we would quickly be able to see that it has either infinite solutions, or no solutions, dependening upon the right hand side ]   Jan 8, 2015

#1
+13

Here's the answer to this one, shania....

9x+3y=0

-36x-12y=0

This set of equations wiill have infinite answers because they are actually the same........multiply the top equation by -4 and we have -36x - 12y  = 0 ......which is just the second equation in disguise.....

[ BTW,,,if you take Linear Algebra, you will discover that the determinant of this system = 0  ....which means that we would quickly be able to see that it has either infinite solutions, or no solutions, dependening upon the right hand side ]   CPhill Jan 8, 2015
#2
+8

well ok than thank   Jan 8, 2015
#3
+5

I have answered on the original question.  :)

Jan 8, 2015