#### Answer

To find the y-intercept of a linear equation, set $x=0$, and then solve for the value of $y$.

#### Work Step by Step

The y-intercept of a linear equation is the point on the y-axis where the line crosses.
Note that all points on the y-axis have a x-coordinate of $0$.
Thus, to find the y-intercept of a linear equation, set $x=0$, and then solve for the value of $y$.
Example:
To find the y-intercept of $y=2x-4$, set $x=0$, and then solve for $y$ to obtain:
$y=2x-4
\\y = 2(0)-4
\\y=0-4
\\y=-4$
Thus, the y-intercept is $-4$.