Know that a line parallel to the x-axis has a slope of 0. To find the equation of the line given the slope and a point on the line, we can use the point-slope equation, which is ([tex]m[/tex] is the slope and ([tex]x_1[/tex], [tex]y_1[/tex]) is a point on the line):
[tex](y - y_1) = m(x - x_1)[/tex]
Using the information we know, we can create the equation:
[tex](y + 5) = 0(x - 8)[/tex]
[tex]y - 5 = 0[/tex]
[tex]y = 5[/tex]
The equation of the line is y = 5.
