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1. solve the system of equations by graphing then classify the system?
3x-9y=72
2x-6y=-2
what is the solution of the system?
is the system consistent?
are the equations dependent or independent?
2.graph and write in interval notation
4<x<12 the solution in interval notation is?
1 Antwort
- Anonymvor 1 JahrzehntBeste Antwort
In order to graph solve for y in both equations, this is the simplest and most straight foreward way.
3x-9y=72
2x-6y=-2
becomes
y= 1/3x -8
y= 1/3x 1/3
Graph and see where they cross (if they cross), remember the number by the x is the slope and the other number is the y-intercept. These turn out to be parallel lines so there is no solution. The system is independent and inconsistent.
Remember a few things, consistent simply means it has a solution, dependent means both equations represent the same line.
I hope that helped!