Answer:

Step-by-step explanation:
Your answer was mostly correct. Just change < into 
Answer:
Standard form is Ax+By=C
move the x-value to the left: 1/2x+y=4
1/2x+y=4
or multiply by 2x+2y=8
Step-by-step explanation:
Answer:
y=12x+2
Step-by-step explanation:
Parallel lines have the same slope, and you can make the y-intercept any positive number