What is the rate of change and initial value for the linear relation that includes the points shown in the table? (4 points)
x y
1 20
3 10
5 0
7 -10
Initial value: 20, rate of change: 10
Initial value: 30, rate of change: 10
Initial value: 25, rate of change: -5
Initial value: 20, rate of change: -10