This means any point on the y-axis has an x-coordinate. Where the graph of an equation crosses the y-axis. If x is 6 12 x 6 is 3 -3 is indeed equal to 0.
The y-intercept of an equation is a point where the graph of the equation intersects the Y-axis.
Then you can simplify to write this is slope-intercept form and solve the x and y intercepts as given. When you want the x intercepts x0. Y y-intercept can easily be identified or read off from this form. Live one on one classroom and doubt clearing.