Question

in john care the number of miles driven to the number of gallons of gas used.what is the constant proportionalityGallons of Gas | Miles Driven4 | 1126 | 16810 | 28012 | 336

Answer 1

In a proportional relationship, the equation that relates the variables x and y is:

y = kx

where k is the constant of proportionality. Isolating k:

k = y/x

Using x to designate Gallons of Gas and y to designate Miles Driven, we can find k replacing with the point (4, 112) as follows:

k = 112/4

k = 28 miles/gallon