Y- intercept = -6.
The y-intercept is the point on the graph where it crosses the y-axis. It is also the value of the y-coordinate when the x-coordinate = 0.
In the slope-intercept form, y = mx + b:
m = slope
b = y-intercept.
In your given graph, the slope (m) = 12, and the y-intercept (b) = -6.
Therefore, the y-intercept = -6.