Answer:
The slope is negative
Explanation:
Looking at the graph, from left to right, as the x values increase the y values decrease. Therefore, the slope is negative. For undefined slopes, that is a vertical line since there is no change in x as there is a change in y (the slope formula would give you a denominator equal to zero which is undefined). A zero slope is a horizontal line since the y is not changing as the x values change (the slope formula would produce a zero in the numerator). A positive slope would show the y values increasing as the x values are increasing.
I know you didn't ask for an explanation, but I hope this helps mitigate your future need for help. :)