Line l has a slope. positive negative undefined 0

positive

Step-by-step explanation:

The slope of a line is given by:-

From the given picture, it can be seen that the rise in the line l is positive since the change in the y coordinates increases as we from left to right.

Similarly we can see that  the run in the line l is positive since the change in the x coordinates increases as we from left to right.

By using above formula, the slope of line m is positive.

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²