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| 1 | |
Which of the following relations does not appear to be quadratic? |
| | A) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question1a.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"> (312.0K)</a>]]> |
| | B) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question1b.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"> (302.0K)</a>]]> |
| | C) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question1c.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"> (302.0K)</a>]]> |
| | D) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question1d.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"> (302.0K)</a>]]> |
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| 2 | |
The graph below shows a quadratic relation. What are its x-intercepts?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question2.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"> (302.0K)</a>]]> |
| | A) | x = 3 and x = -2 |
| | B) | x = - ½ |
| | C) | x = -3 and x = 2 |
| | D) | x = 3 and x = 2 |
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| 3 | |
The graph below shows a quadratic relation.
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question3.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"> (302.0K)</a>]]>
What are the coordinates of its vertex? |
| | A) | x = 1 and x = 3 |
| | B) | (2, 0) |
| | C) | (2, -4) |
| | D) | (2, 4) |
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| 4 | |
Which of the following data sets can be modelled by a quadratic relation? |
| | A) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question4a.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"> (6.0K)</a>]]> |
| | B) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question4b.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"> (6.0K)</a>]]> |
| | C) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question4c.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"> (6.0K)</a>]]> |
| | D) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question4d.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"> (6.0K)</a>]]> |
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| 5 | |
Expand and simplify: (3x - 2)(2x - 1) |
| | A) | 6x2 - 7x - 2 |
| | B) | 6x2 - 7x + 2 |
| | C) | 6x2 + 2 |
| | D) | 6x2 - 2 |
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| 6 | |
Factor fully: -3n3 + 9n2 - 75n |
| | A) | -3(n3 - 3n2 + 25) |
| | B) | n(-3n2 + 9n - 75) |
| | C) | -3n(n2 - 3n - 25) |
| | D) | -3n(n2 - 3n + 25) |
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| 7 | |
Factor fully: 144z2 - 49y2 |
| | A) | (12z - 7y)(12z - 7y) |
| | B) | (12z + 7y)(12z + 7y) |
| | C) | (12z - 7y)(12z + 7y) |
| | D) | (12z - 7y)2 |
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| 8 | |
Factor fully: x2 - 4x -32 |
| | A) | (x + 8)(x - 4) |
| | B) | (x - 16)(x + 2) |
| | C) | (x - 6)(x + 2) |
| | D) | (x - 8)(x + 4) |
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| 9 | |
Factor fully: 3x2 + 21x + 30 |
| | A) | 3(x2 + 7x + 10) |
| | B) | 3(x + 2)(x + 5) |
| | C) | (3x + 6)(x + 5) |
| | D) | (x + 2)(3x + 15) |
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| 10 | |
Find a fully-simplified expression for the area of the shaded region below in square units:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question10.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"> (104.0K)</a>]]> |
| | A) | x(5x - 9) |
| | B) | 5x2 - 9x |
| | C) | x(5x + 1) |
| | D) | x(7x + 1) |
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| 11 | |
Complete the sentence: “The zeros of a relation… |
| | A) | "…are the values of x where the relation crosses the x-axis." |
| | B) | "…are the values of y where the relation crosses the y-axis." |
| | C) | "…are the values of the function when x = 0." |
| | D) | "…are the co-ordinates of the endpoints of the relation." |
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| 12 | |
Find the value of x which will maximize the area of the rectangle below:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_PracticeExam678_question12.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"> (102.0K)</a>]]> |
| | A) | x = 72 |
| | B) | x = -4 |
| | C) | x = 4 |
| | D) | x = 12 |
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| 13 | |
The sales of a new CD can be modelled by the equation S = -d2 + 150d + 10000, where S represents sales in CD's and d > 0 represents days from the time of the CD's release.
How many copies will the CD sell on the day when it reaches its peak in sales? |
| | A) | 75 |
| | B) | 15,625 |
| | C) | 26,875 |
| | D) | 10,000 |
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| 14 | |
The sales of a new CD can be modelled by the equation S= -d2 + 150d + 10000, where S represents sales in CD's and d > 0 represents days from the time of the CD's release.
How many days after its release will the CD stop selling? |
| | A) | -50 |
| | B) | 200 |
| | C) | 50 |
| | D) | 75 |
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| 15 | |
The sales of a new CD can be modelled by the equation S = -d2 + 150d +10000 , where S represents sales in CD's and d > 0 represents days from the time of the CD's release.
For how many days in a row will the CD sell at least 15000 copies? |
| | A) | 200 |
| | B) | 150 |
| | C) | 100 |
| | D) | 50 |
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