Answer:
The answer to your question is 5
Step-by-step explanation:
Rate of change of a linear function is the slope of the function.
To find the answer:
1.- Find two points of the line
A = (2, 4)
B = (1, -1)
2.- Write the formula of the slope
m = (y2 - y1) / (x2 - x1)
3.- Identify the values of x1, y1, x2 and y2
x1 = 2 y1 = 4 x2 = 1 y2 = -1
4.- Substitution
m = (-1 - 4) / (1 - 2)
5.- Simplification
m = -5/-1
6.- Result
m = 5
