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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)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007092242x/118756/MATC9_Ch07_3_KeyConcepts_Quiz_Q1a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>

B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007092242x/118756/MATC9_Ch07_3_KeyConcepts_Quiz_Q1b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>

C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007092242x/118756/MATC9_Ch07_3_KeyConcepts_Quiz_Q1c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>

D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007092242x/118756/MATC9_Ch07_3_KeyConcepts_Quiz_Q1d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>

2

Find the slope of the line passing through points A(–2, 4) and B(5, –6).
A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007092242x/118756/MATC9_Ch07_3_KeyConcepts_Quiz_Q2a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>

B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007092242x/118756/MATC9_Ch07_3_KeyConcepts_Quiz_Q2b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>

C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007092242x/118756/MATC9_Ch07_3_KeyConcepts_Quiz_Q2c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>

D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007092242x/118756/MATC9_Ch07_3_KeyConcepts_Quiz_Q2d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (0.0K)</a>

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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