find the y-intercept of the line by substituting o in for x and solving for y

To find the y-intercept of a line, you need to substitute 0 in for x in the equation of the line and solve for y. Here are the steps:

1. Identify the equation of the line. It's typically in the form y = mx + b, where m is the slope and b is the y-intercept.
2. Substitute 0 in for x in the equation. This will leave you with y = m(0) + b, which simplifies to y = b.
3. Solve for y. Since y = b, the y-intercept of the line is b.

Without a specific equation, I can't provide a numerical answer. But these steps will allow you to find the y-intercept for any linear equation.