Let's determine at least two points that passes through the line with equation y= x/2 - 3. The two points are when x = 0 and y = 0.
y = x/2 -3
At x = 0 At y = 0
y = x/2 -3 y = x/2 - 3
y = 0/2 - 3 0 = x/2 - 3
y = -3 x/2 = 3
x = (3)(2)
x = 6
We now got two points at Point A(0,-3) and Point B(6,0). Let's now plot the graph of the equation.