Answer:
The equation of the horizontal line that passes through the point (2,4) is;

Step-by-step explanation:
We want to find the equation of an horizontal line that passes through the point;

A horizontal line is of the form;

where a is a constant.
For it to pass through the given point, a must be equal to the y value of the coordinate of the given point.
So, the equation is;

The equation of the horizontal line that passes through the point (2,4) is;
