Question

WILL MEDAL PLEASE HELP
How many solutions are there to the following system of equations?
3x – 9y = 0
–x + 3y = –3

A 0
B 1
C 2
D infinitely many

Answer 1

c

Answer 2

Example for a system with no solution:
5x+3y=4
-5x-3y=-6
Example for a system with a infinite number of solutions:
5x+3y=4
-5x-3y=-4

Answer 3

Thank you @mathmate I used a graphing calculator to help, since I'm timed, but it stilll confused me until now, THANKS BUNCHES!!!

Answer 4

graphing is a good idea too
so what did you notice on graph ?

Answer 5

I noticed the lines didn't cross each other which means that there are no solutions. @ganeshie8

Answer 6

Perfect !

Answer 7

Thank you! @ganeshie8 :D