Two airplanes are in flight. The function represents the altitude, , of one airplane after minutes.
The graph below represents the altitude of the second airplane.

Identify the rate of change for the first function.

Identify the -intercept for the first function.

Identify the rate of change for the second function.

Identify the -intercept of the second function as the coordinate of the line that intersects with the -axis.

Compare the properties of each function.

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