Answer: Independent variable = number of miles he drive over 10 miles
Dependent variable = Total fee (in dollars)
Step-by-step explanation:
Given : Charge for each delivery = $7
Addition charge for each mile over 10 miles = 45 cents = $0.45
[ 1 cent = $ 0.01 ]
Since the fee vary by the number of miles he drive over 10 miles.
So , Independent variable = number of miles he drive over 10 miles
Dependent variable = Total fee (in dollars)
Let x= number of miles he drive over 10 miles
y= Total fee (in dollars)
Such that , [tex]y= 7+0.45x[/tex] [Total fee= Fixed charge + Additional charge ]
So , the appropriate variables are:
Independent variable = number of miles he drive over 10 miles
Dependent variable = Total fee (in dollars)
