To find the time it will take a train to travel from springfeild to franklin use the expression d/s where d represents distance and s represents speed find the time if the train travels at a speed of 79 miles per hour

1.17+3.99a. you combine the terms with a to create 3.99 and the 1.17 stays because it has no like terms or a variable

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for