The expression 35 + 45x represents a train's distance, in miles, from a terminal after x hours of travel.
how far was the train from the terminal at the beginning of its journey?

35 miles.

Because it was at beginning of journey, it must be x = 0. Now that we have a value for x now we can solve the equation.

35 + 45(0) = 35 + 0 = 35

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

The answer it dorneo dodneurekd r egg rorne