



 
Laura, How much more did it cost ("rise") in June? How many more miles ("run") did she drive? How many fewer miles than in May would she drive if she did not drive at all? Using the same ratio, how much less than in May would it cost? How much ("y intercept", "b") is that? Good Hunting!
 


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 