The distance graph shows the height of a plane as it completes a journey. When the plane is at a height of 38,000 feet (ft), it travels at a constant speed of 550 miles per hour. The question asks how ...
The slope or gradient of the line of a distance time graph is equal to the speed of the object. The steeper the line (and the greater the gradient) the faster the object is moving. Gradient = ...
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