Answer:
Graph is attached below
Yes, it is a function
The total rental cost is $26
Step-by-step explanation:
Steps are shown in the graph.
However, to type them out here:
Write down a function of x: [tex]y(miles)= (miles \cdot 0.30) +[/tex] daily rental cost
Then place the numbers in: [tex]y(20)=x(0.30) +20\\y(20)=26[/tex]
