Wirte an equation of a line perpendicular to the graph of y=4 and which passes through the point (2,5)
The equation of the line y=4 is a horizontal line passing through all points with a y-coordinate of 4.
Since the line perpendicular to y=4 will be a vertical line passing through the point (2,5), its equation will be x=2.
Therefore, the equation of the line perpendicular to y=4 and passing through the point (2,5) is x=2.