Find the slope and y-intercept.

x=7

I know that the slope is undefined.
The y-intercept would be none, right?
Since no y is listed.

What you have is a vertical line through x = 7. "y" can be anything.

The slope is infinity and the y axis is never intercepted, so there is no y-intercept. .

Thank You

What is the equation???

The equation of a vertical line through x = 7 can be written as x = 7. In this case, there is no y-intercept because the line is parallel to and does not intersect the y-axis. So the equation is simply x = 7.