Solution:
The equation of a line in slope-intercept form is expressed as
[tex]\begin{gathered} y=mx+b \\ where \\ m\Rightarrow slope\text{ of the line} \\ b\Rightarrow y-intercept\text{ of the line} \end{gathered}[/tex]Given that the slope and intercept are
[tex]\begin{gathered} m=0 \\ b=-10 \end{gathered}[/tex]By substituting these values into the line equation, we have
[tex]y=0(x)+(-10)[/tex]Hence, the equation of the line is
[tex]y=-10[/tex]