# How do you find the slope and y intercept for x = - 2/5 ?

$x = - \frac{2}{5}$ means that no matter what the y-coordinate is, the x-coordinate will be -2/5.
Since the y-intercept is defined as the point on a function where the x-value is 0, and the x-value of this line never is 0, this function has no y-intercept. That means it is a vertical line, so it slope is 1/0, which is undefined (technically speaking, it is $\pm \infty$).