Algebra/Unit 4 Quiz 1/Objective 1-2 a Up or Down Vertex 1 «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»Does«/mi»«mo»§#160;«/mo»«mi»the«/mi»«mo»§#160;«/mo»«mi»parabola«/mi»«mo»§#160;«/mo»«mi»of«/mi»«mo»§#160;«/mo»«mi»the«/mi»«mo»§#160;«/mo»«mi»following«/mi»«mo»§#160;«/mo»«mi»function«/mi»«mo»§#160;«/mo»«mi»open«/mi»«mo»§#160;«/mo»«mi»up«/mi»«mo»§#160;«/mo»«mi»or«/mi»«mo»§#160;«/mo»«mi»open«/mi»«mo»§#160;«/mo»«mi»down«/mi»«mo»?«/mo»«mspace linebreak=¨newline¨/»«mspace linebreak=¨newline¨/»«mi»f«/mi»«mo»(«/mo»«mtext»x«/mtext»«mo»)«/mo»«mo»=«/mo»«mo»#«/mo»«mi»a«/mi»«mo»(«/mo»«mi»x«/mi»«mo»-«/mo»«mo»#«/mo»«mi»h«/mi»«msup»«mo»)«/mo»«mn»2«/mn»«/msup»«mo»+«/mo»«mo»#«/mo»«mi»k«/mi»«/math»

]]> 1.0000000 0.3333333 0 true true abc Your answer is correct.

]]> Your answer is partially correct.

]]> Your answer is incorrect.

]]> The parabola opens up (a smile).

]]> «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»Since«/mi»«mo»§#160;«/mo»«mi mathvariant=¨normal¨»a«/mi»«mo»§lt;«/mo»«mn»0«/mn»«mo»§#160;«/mo»«mo»(«/mo»«mi mathvariant=¨normal¨»a«/mi»«mo»=«/mo»«mo»#«/mo»«mi mathvariant=¨normal¨»a«/mi»«mo»)«/mo»«mo»,«/mo»«mo»§#160;«/mo»«mi»the«/mi»«mo»§#160;«/mo»«mi»parabola«/mi»«mo»§#160;«/mo»«mi»opens«/mi»«mo»§#160;«/mo»«mi»down«/mi»«mo».«/mo»«/math»

]]> The parabola opens down (a frown).

]]> <question><wirisCasSession><![CDATA[<session lang="en" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="en">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>a</mi><mo>=</mo><mi>random</mi><mo>(</mo><mo>-</mo><mn>5</mn><mo>,</mo><mo>-</mo><mn>1</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>h</mi><mo>=</mo><mi>random</mi><mo>(</mo><mn>2</mn><mo>,</mo><mn>20</mn><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>k</mi><mo>=</mo><mi>random</mi><mo>(</mo><mn>1</mn><mo>,</mo><mn>50</mn><mo>)</mo></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer></correctAnswer></correctAnswers><options><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="casSession"/></localData></question>