Solution:
Given:
[tex]y=10[/tex]This is the equation of a horizontal line.
The slope of a horizontal line is 0.
Comparing the equation to equation of a line in slope-intercept form,
[tex]\begin{gathered} y=mx+b \\ \\ where; \\ m\text{ is the slope} \\ b\text{ is the y-intercept} \\ \\ Then, \\ y=mx+b \\ y=0x+10 \\ \\ Then, \\ m=0 \\ b=10 \end{gathered}[/tex]Therefore, the slope, m = 0
The slope of y = 10 is 0.
