A pilot is flying a CRJ-900 from Phoenix, Arizona, to Louisville, Kentucky. The aircraft cannot take off or land if the temperature on the field is not within its operating limitations. The aircraft cannot operate if the temperature is at or below −40° F, or at or above 118° F.Part A: Write an inequality to represent the temperatures the pilot can take off and land in. Part B: Describe the graph of the inequality completely from Part A. Use terms such as open/closed circles and shading directions. Explain what the solutions to the inequality represent. Part C: In June 1990, the temperature in Phoenix, Arizona rose to 122° F. Could the pilot have taken off on this day? Why or why not?

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MekaelT123803 MekaelT123803 · Answer 1 · 2022-10-28T23:51:51+02:00

Operating limitations

The temperature is at or above 118ºF, symbolically: T≥118ºF

The temperature is at or below -40ºF, symbolically T≤-40ºF

Part A

Any temperature between those are alright for the pilot to take off and land in. You can symbolize the inequality as:

-40

Part B

Part C

June 1990 T=122º, this temperature is above the upper limit of the operating temperatures, i.e. is greater than the max operating temperature.

The pilot wouln't have taken off on that day.