1. Initial value: 10
Rate of change: 3
Equation: y + 3
2. Initial value: 3
Rate of change: 3
Equation: y + 3
3. Initial value: 8
Rate of change: -2
Equation: y - 2
The initial value is the y-coordinate when x is equal to 0.
The rate of change is the difference between one point to the next immediate point.
The equation shows the rate of change.