The equation of a line parallel to line EF in slope-intercept form is Oy = 2x + b, where b is the y-intercept.
To determine the value of b, we will use the fact that this line passes through the point (2, 6).
Plugging in the x-coordinate of the point (2, 6) into the equation Oy = 2x + b, we get:
6 = 2(2) + b
6 = 4 + b
Subtracting 4 from both sides, we get:
2 = b
Therefore, the equation of the line parallel to line EF in slope-intercept form that passes through the point (2, 6) is:
Oy = 2x + 2.