Equations in slope-intercept form follow a specific format.
y= mx+ b
Here m represents the slope of the line and b is the y-intercept. Let's rewrite our equation a little bit so that it more closely resembles this format. This will make it easier to identify the features of the equation.
y=8 ⇒ y= 0x+ 8
We can see above that the slope is 0 and the y-intercept is 8.