Ok so you want to find which one is y=1/2x - 3.
1/2 represents the growth of the graph, so in this case it means the line is moving up by 1/2 every 1 moved to the right. -3 represents where the graph will start, so -3, also known as (0,-3) will be located on the Y axis 3 below 0.
All this means the answer is A.
Brainliest Answer Please....