Answer:
x = 4
Step-by-step explanation:
If two lines are perpendicular to each other, they have opposite slopes.
The first line is y = 14. Its slope is 0. A line perpendicular to this one will have a slope that is undefined, which is a vertical line.
Vertical lines have this equation: x = #
In this case, your x-value has to include 4.
Therefore, a line perpendicular to y = 14 that includes (4, -12) will have to be: x = 4.
Hope this helps!
