Answer:As you can see, this line is vertical! It goes directly up. We know that because the equation says that X is equal to -3. It is telling us that no matter what the Y value is, X will be -3.
Explanation:
The equation to find slope is to take two points
(A,B) and (C,D) and to do the following equation: D−B
______
C−A
So, let's take two points. Let's say that Y is equal to 3 and 2. In that case, since X is always -3, our points would be (−3,2) and (−3,3).
Now, let's substitute into our formula.
3−2 1 1
------ = ----- = ---
3 (−3) (subtract) -3 + 3 0
As you can see, the final slope is 1/0
. If you put that into your calculator, it will come out as undefined, because any number divided by zero is undefined. And so your slope for any vertical line is undefined.