= 10 hole minus. U add the two halfs then ad the hole minus
3 because the 2z minus the 3 gives you 1 rounded
Y intercept means x = 0, on x= 0 y is also zero so the cordinate is (0,0)
Use a compass to make a circle around both lasers at the same degree and they should over lap. where they over lap use your straight edge to make a direct line from the point where your at through where they cross. that will be your answer, hope i helped.