In applications using direct variation, generally we will know values of one pair of the variables and will be asked to find the equation that relates x and y. When Raoul runs on the treadmill at the ...In applications using direct variation, generally we will know values of one pair of the variables and will be asked to find the equation that relates x and y. When Raoul runs on the treadmill at the gym, the number of calories, c, he burns varies directly with the number of minutes, m, he uses the treadmill. The maximum load a beam will support varies directly with the square of the diagonal of the beam’s cross-section.
