Given that the horizontal line that passes through the point (-5,9)
We need to determine the equation of the horizontal line.
Horizontal line:
The formula to determine the equation of the horizontal line is given by
[tex]y=b[/tex]
where b is the value of y
Thus, from the point (-5,9), the value of b is [tex]b=9[/tex]
Thus, the formula to determine the equation of the horizontal line is given by
[tex]y=9[/tex]
Hence, the equation of the horizontal line is [tex]y=9[/tex]
Thus, Option B is the correct answer.