ANSWER
[tex]y = - 7[/tex]
EXPLANATION
A horizontal line that passes through (a,b) has equation
[tex]y = b[/tex]
This is because a horizontal line is a constant function.
The y-values are the same for all x belonging to the real numbers.
The given line passes through (-8,-7).
In this case, we have b=-7.
Therefore the equation of the horizontal line that passes through the point (-8, -7) is
[tex]y = - 7[/tex]
