PLEASE HELP! I have been working on this IXL for over 30 minutes and I keep getting the questions wrong. I am not good at graphing and I am really frustrated. Can someone please help?

Answer:
The point is (-6|3)
Step-by-step explanation:
x-3y= 3
x-3=3y
(1/3)x-1= y
for y=0
(1/3)x-1=0
(1/3)x=1
x=3
first Point P(3|0)
for x=0
-1=y
second Point T(0|-1)
Proof:
x-3 *(-3)=3
x+9=3
x=-6