Question

What is the equation of the line that passes through the point (5, -4) and

has an undefined slope?

Answer 1

x=5

Explanation:

If the slope is undefined, it is a vertical line. Since the slope-intercept equation is y=mx+b, but the slope is undefined, the equation would have to be the x coordinate, because that is the unchanging variable in a vertical line. So, the answer is x=5.