M is the slope.
B is the y-intercept
The constant of proportionality is the ratio between two directly proportional quantities.
F(x)= 3.99 + .99x
X is the amount of days it is late
They are equal so...
15x+2 = 9x+20
15x-9x = 20-2
6x =18
x = 18/6 = 3
x = 3
Answer:
The constant of proportionality
Step-by-step explanation:
