Final answer:
The y-coordinate of the point of intersection between the vertical line x=2 and the line y=7x+1 is 15.
Step-by-step explanation:
The point of intersection between the vertical line x=2 and the line y=7x+1 can be found by substituting the x-coordinate of the vertical line into the equation of the other line. In this case, the x-coordinate of the point of intersection is 2. So, substituting x=2 into y=7x+1 gives:
y=7(2)+1 = 15
Therefore, the y-coordinate of the point of intersection is 15.