The y-intercept of a linear equation is the point on the y-axis at which the line cuts.
It could be found by plugging x = 0 in the given linear equation.
For example,
Consider 3x + 2y = 6. To find the y-intercept just plug x = 0 in the equation.
3(0) + 2y = 6
2y = 6
y = 3
(0, 3) is the y-intercept of the linear equation 2x + 3y = 6.
Note: In the same way we can find the x-intercept by plugging y = 0 in the given linear equation.