Answer
The slope is $0$.
The $y$-intercept is $5$.
Refer to the graph below.
Work Step by Step
The slope of the line can be obtained by looking at the coefficient of $x$ in the slope-intercept form.
$y=5$ can be interpreted as
$y=0\cdot x+5$
Thus, the slope is $m=0$.
By definition, the $y$-intercept is the constant in the slope-intercept form of the equation.
For $y=5$ , the constant is $5$, therefore the $y$-intercept is $5$.
The line $y=5$ is horizontal and contains points whose $y$-coordinate is $5$.
Refer to the graph above.
