A linear relationship between two quantities will produce a graph of a straight line. ... In order to create the line, we use the function equation and evaluate the range, or output, values based upon several of the domain, or input, values.
The answer will need to be 1 because 1/2 will equal 2
8x7x6x5x4x3x2x1
multiply the numbers
the answer is 40320
12.75 gallons of gasoline