slope between (0, 0) and (1, 3) is 3
slope between (1, 3) and (2, 12) is 9
slope between (0, 1) and (1, 4) is 3
slope between (1, 4) and (2, 16) is 12
Solution:
The slope between two points is given as:

Slope between (0, 0) and (1, 3)

Thus slope between (0, 0) and (1, 3) is 3
Slope between (1, 3) and (2, 12)

Thus slope between (1, 3) and (2, 12) is 9
Slope between (0, 1) and (1, 4)

Thus slope between (0, 1) and (1, 4) is 3
Slope between (1, 4) and (2, 16)

Thus slope between (1, 4) and (2, 16) is 12