Please help me with this question please

Answer:
D
Step-by-step explanation:
the equation has a rate of change of 3
y = mx + b
m is the rate of change
find slope:
y2 - y1/x2 - x1
15 - 5/9 - 2
10/7
1 3/7
3 > 1 3/7
the equation has a greater rate of change