They are parallel to eachother
aerage rate of change is just the slope from the endpoints of teh interval
ie 
assuming you mean 
evalaute f(5) and f(1)
f(5)=480(0.3)^5=1.1664
f(1)=480(0.3)^1=144
average rate of change=(1.1664-144)/(5-1)=-35.7084
the average rate of change of the function on the interval x=1 to x=5 is -35.7084
Solve using quadratic formula!
Answers:
5 + √39
5 - √39
Answer:
^_^(❁´◡`❁)
Step-by-step explanation: