Key Concepts Quiz 7.3
Key Concepts Quiz 7.3
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Use the document below to help answer questions 1 and 2:

 1 Find the slope of the line passing through points A( –3, 1) and B(2, 5). A) (0.0K) B) (0.0K) C) (0.0K) D) (0.0K) 2 Find the slope of the line passing through points A(–2, 4) and B(5, –6). A) (0.0K) B) (0.0K) C) (0.0K) D) (0.0K)

Use the document below to help answer questions 3 and 4:

 3 When Sally was 50 m from the starting point of a race after running for 12 s, she increased her speed, and reached the 120 m mark after a total running time of 26 s. Find her speed during this part of the race. A) 4.6 m/s B) 5.0 m/s C) 8.6 m/s D) 10.0 m/s 4 After Halmi had been flyng his airplane for 0.5 h, Air Traffic Control advised him that he was 80 km from the airport. Halmi increased the speed. At a total time of 1.75 h, an update advised him that he was now 330 km enroute. Find the speed of the airplane during this part of the flight. A) 64.0 km/h B) 142.9 km/h C) 188.6 km/h D) 200 km/h

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