Question

Which is true about the line whose equation is x = 5?

The slope is undefined.


The y-intercept is 4.


The value of x always equals the value of y.


The slope is zero.

Answer 1

the slope is undefined

Explanation:

Since x=5, the graph is a straight vertical line when x=5. Since the line is vertical and not horizontal, the slope is undefined. If the line was horizontal then the slope would equal zero.