At the airport a plane at 5000 feet is descending to land at a rate of 100 feet per minute while on another runway, a plane is at 500 feet and rising at a rate of 50 feet per minute. Which graph shows when the planes will be at the same altitude?​

At the airport a plane at 5000 feet is descending to land at a rate of 100 feet per minute while on another runway a plane is at 500 feet and rising at a rate o class=