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| 1 | |
A quadratic equation can be represented by an equation of the form: |
| | A) | …y = ax2 + bx + c . |
| | B) | …y = ax2 + bx + c , where a ≠ 0. |
| | C) | …y = ax2 + bx + c , where a > 0. |
| | D) | …y = ax2 + bx + c , where b ≠ 0. |
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| 2 | |
The second differences of a quadratic relation are: |
| | A) | …equal to zero. |
| | B) | …usually equal to each other. |
| | C) | …equal to the first differences. |
| | D) | …constant. |
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| 3 | |
Which one of the following data sets shows a quadratic relationship? |
| | A) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_key6_4_q3_a.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"> (7.0K)</a>]]>
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| | B) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_key6_4_q3_b.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"> (7.0K)</a>]]>
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| | C) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_key6_4_q3_c.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"> (8.0K)</a>]]>
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| | D) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_key6_4_q3_d.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"> (7.0K)</a>]]> |
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| 4 | |
What are the missing values in the table shown?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_key6_4_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"> (9.0K)</a>]]>
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| | A) | A=5
B=1
C=2 |
| | B) | A=13
B=15
C=2 |
| | C) | A=13
B=19
C=6 |
| | D) | A=4
B=15
C=2 |
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| 5 | |
Given the data from a quadratic relation below:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_key6_4_q5.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"> (5.0K)</a>]]>
Which of the following points could be added to preserve the quadratic relationship between x and y? |
| | A) | (0, -30) |
| | B) | (4, 0) |
| | C) | Both (0, -30) and (4, 0). |
| | D) | Neither (0, -30) nor (4, 0). |
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