Answer:
The answer to your question is f(x) = x + 4
Step-by-step explanation:
Data
A (-3, 1)
B (-2, 2)
C (-1, 3)
D (0, 4)
Process
1.- Find the slope
m = (y2 - y1) / (x2 - x1)
- Substitution
m = (2 - 1) / (-2 + 3)
Simplification
m = 1/1
Result
m = 1
2.- Find the equation of the line
y - y1 = m(x - x1)
Use point A (-3 , 1)
y - 1 = 1(x + 3)
Simplification
y - 1 = x + 3
Result
y =x + 3 + 1
y = x + 4
y = f(x) = x + 4
