A)
Table
amount of gas used(gallons) distance traveled(miles)
x y
0 40
1 90
2 140
3 190
4 240
5 290
equation
y = 40 + 50 x
Where x is the amount of gas used in gallons and y is the distance traveled
A) Yes, the total distance traveled is a function of the amount of gas uses, becuase given the amount of gas used you can tell the distance traveled.
The independent variabl is the amount of gas used and the independent variable is the distance traveled. This is you input the amount of gas used ant the output of the function is the distance traveled.