Question 511550
Okay...They need you to find the second equation which parallel with the given line and pass through point (0,3).
Two lines are parallel when they have the same slope.
Since the given line slope is:
2x - y = 1
-y = -2x + 1
y = 2x - 1
Thus the given line slope is m = 2. Thus the new line must have the same slope 
m = 2.
Now we apply the point-slope formula to write the new equation:
y - yo = m(x - xo)
y - 3 = 2(x - 0)
y - 3 = 2x
y = 2x + 3 which is the line that you needed.
John10:)