Question 897962
<pre>
Let x = the number of gallons in your tank when you arrive
at the filling station:

Let y = the cost to fill your tank.

If your tank is empty, then x = 0 and y = $16×3 = $48

If your tank is already full then x = 16 and you will not need
any gas and it will cost you nothing, so y = $0

So the graph will be a line from the point (0,$48) to (16,$0)

So the domain will be 0 &#8806; x &#8806; 16 and the range will be 0 &#8806; y &#8806; 48

In interval notation the domain is [0,16] and the range is [0,$48]

The graph will look like this

{{{drawing(400,600,-.9,16.9,-2,48.9,

graph(400,600,-.9,16.9,-2,50), line(0,48,16,0) )}}}

Edwin</pre>