Answer:
Option B
Step-by-step explanation:
To calculate the rate of the table is given by the expression,
Rate =
For table A,
x y
2 10 - - -
3 15 15 - 10 = 5 3 - 2 = 1
5 20 20 - 15 = 5 5 - 3 = 2
8 25 25 - 20 = 5 8 - 5 = 3
Therefore, rate is not constant in this table.
For table B
x y
3 9 - - -
5 15 15 - 9 = 6 3 - 5 = 2
8 24 24 - 15 = 9 8 - 5 = 3
10 30 30 - 24 = 6 10 - 8 = 2
Therefore, table B shows a constant rate of 3.
Option B is the correct option.