What is the y-intercept of x - 2y = -6
The y-intercept is where the graph cuts the y-axis.
This is always the point on the graph when x = 0. (visualise it)
So if we have x - 2y = -6, and then set x to equal 0, then
-2y = -6
y = 3
So, the y-intercept is y = 3