Respuesta :

Answer:

Line 1 and Line 3

Step-by-step explanation:

Line 1: x - 3y = 9

Line 3: y = [tex]\frac{1}{3}[/tex]x + 2

x - 3([tex]\frac{1}{3}[/tex]x + 2) = 9

x - x - 6 = 9

0 - 6 = 9

-6 = 9

NO SOLUTION!

-6 does not equal 9.

Answer: 1,3

This lines have the same slope 1/3 so they never intersect they are parallel so they have no add solution

Step-by-step explanation:

Line 1 is y=1/3x-3

Line 2 is y= -2x-9

Line 3 is y=1/3x+2

Line 4 is y= 1/2x+1