Posted by B.B. on Sunday, April 11, 2010 at 3:16pm.
Could someone please help me with this. I am confused. Math is a weak point for me.
Solve the system of equations by graphing. Then classify the system. 9x6y=30, 6x9y= 30. The solution is? Consistent or inconsistent, dependent or independent?
How would I graph this?
Thanks.

Math  Damon, Sunday, April 11, 2010 at 3:26pm
9x6y=30, 6x9y= 30
divide everything by 3
3x  2y = +10 multiply by 3
2x  3y = 10 multiply by 2
9x  6y = +30
4x  6y = 20 now subtract

5 x = 50
x = 10
20  3y = 10
3 y = 30
y = 10
straight lines
intersection at (10,10)
slope of first = 9/6 = 1.5
slope of second = 2/3 = .6667
first hits y axis at 5 and x axis at 10/3
second hits y axis at 10/3 and x axis at 5
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