## anonymous 3 years ago What is the slope of line CD if C(5,-4) and D(5,2)? Is this a line or line segment?

1. anonymous

$$slope = \dfrac{rise}{run} = \dfrac{\text{change in y}}{\text{change in x}} =\dfrac{y_2 - y_1}{x_2-x_1}$$

2. anonymous

I got 0 is that correct?

3. anonymous

Yes, it is.

4. anonymous

And how do i know if its a line or a line segment?

5. anonymous

A line continues on forever in either direction. A line segment has endpoints.

6. anonymous

so it'll be a line segment bc it has an endpoint

7. anonymous

It seems that way. Usually in a word problem, you will be told if it is a line or a line segment. If there is a picture accompanying this question, a line will have arrows on either end.

8. anonymous

no theres no picture

9. anonymous

Is what you typed the exact wording of the question?

10. anonymous

yes it is

11. anonymous

I'll type it again: What is the slope of CD if C(5,-4) and D(5,2)? Is this a line or a line segment?

12. anonymous

I would have to guess that it is a line segment. Maybe I am over-thinking this, but it just doesn't seem clear to me.