Answer:
1. positive slope.
2. change in y axis by change in x axis.
3. slope: 2/3.
Step-by-step explanation:
Slope is rise over run. Also referred to unit change in y axis by change in x axis.

where (x1, y1) and (x2, y2) are points.
1. As we see the value of y increasing across the x-axis, we know it is a positive gradient. We will have undefined slope if the line was vertical.
2. As mentioned above, slope can be found by change in y axis by change in x axis.
3. Take two points from the line: (0,1), (3,3). Slope: (3-1)/(3-0) = 2/3