Mark a point on the graph to represent the plane's initiai position. Draw a line to represent the outward speed of 300 Kph What feature of the graph gives the speed direct!y? Assuming that the plane arrives back at the airfield exactly four hours after it left, mark a point on the graph to represent its final positron Draw a line to represent the return speed of 300 kph. Find the maximum distance that the pilot can fly from the airfield, and still be sure that there is enough fuel to make a safe return journey - this is \"the point of no return\" and state what time it takes to reach this point. Mark this point of no return clearly on your graph. Lonstruct two linear equations that when solved simultaneously would give you the point of no return'. Check your results with the results above