Answer:
The line y = 7. Any horizontal line passes through the points (x, y) as long as the y coordinate of the points matches that of the line.
Step-by-step explanation:
A horizontal line is given by only a y value. For example, the equation y = 3 is a horizontal line that has points (x, 3) on it.
In a similar fashion, an equation that passes through (-8, 7) will be y = 7 and it will not only pass through the point (-8, 7) but through all points (x, 7).