Question

both plane a and plane b are flying from los angeles at constant speeds. plane a is flying to boise, idaho. plane b is flying to salt lake city, utah. which statement about the planes is supported by the graph above?
plane a is flying faster than plane b.
plane b has flown at a lower altitude than plane a.
plane a has been flying longer than plane b.

Explanation:

In a distance - time graph, the slope represents speed. The steeper the line, the greater the speed. Since the line for plane A is steeper than that for plane B, plane A has a greater speed. The graph does not provide information about altitude or time of flight start.

Answer:

Plane A is flying faster than plane B.