Graph the following direct variations y=2 1/2x

you would put a dot a the point (0,0) and than at the point (1,2) and than at (2,4) than draw a line though it

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2