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| 1 | |
The quadratic relation h = -3.8t2 + 95 models the path of a ball dropped out of a window of a building on the planet Koosbane. How high will it be after 2 s? |
| | A) | 79.8 m |
| | B) | 87.4 |
| | C) | 102.6 |
| | D) | 110.2 |
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| 2 | |
The quadratic relation h = -3.8t2 + 95 models the path of a ball dropped out of a window of a building on the planet Koosbane. How long will it take for the ball to hit the ground? |
| | A) | 25 s |
| | B) | 12.5 s |
| | C) | 5 s |
| | D) | −5 s |
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| 3 | |
The path of a paper airplane can be modeled by the graph shown:
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What is the maximum height the plane can reach, and how far away horizontally from the launch point did it land? |
| | A) | Maximum height = 4.5 m
Distance Flown = 9 m |
| | B) | Maximum height = 3 m
Distance Flown = 4.5 m |
| | C) | Maximum height = 3 m
Distance Flown = 9 m |
| | D) | Maximum height = 9 m
Distance Flown = 3 m |
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| 4 | |
The owner of a hockey rink has collected data relating the cost of tickets to the number of people attending:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_key8_1_q4.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"> (18.0K)</a>]]>
Use these figures to calculate total revenue and estimate, to the nearest half a dollar, what price the owner should charge per ticket to maximize revenue. |
| | A) | $30.00/ticket |
| | B) | $30.50/ticket |
| | C) | $31.00/ticket |
| | D) | $31.50/ticket |
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| 5 | |
Keema wants to build a garden in her backyard against the side of her house. Only three sides will be fenced, as shown:
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She has 20 m of fencing. Using the following table, find the dimensions which will give Keema the greatest area using 20 m of fencing.
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| | A) | Width = 12 m
Length = 4 m |
| | B) | Width = 10 m
Length = 5 m |
| | C) | Width = 6 m
Length = 8 m |
| | D) | Width = 5 m
Length = 10 m |
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