document.write( "Question 1194535: Mario is going to fly through this scene, following the path of the quadratic function 𝑓(𝑥). Based on the
\n" ); document.write( "table and graph, you will write equations for this quadratic function in each of three forms: standard
\n" ); document.write( "form, vertex form, and factored form. You may start with any form you choose, but you need to write
\n" ); document.write( "equivalent equations in all three forms.
\n" ); document.write( "equivalent equations in all three forms.
\n" ); document.write( "𝑥 𝑓(𝑥)
\n" ); document.write( "0 3
\n" ); document.write( "1 1.25
\n" ); document.write( "2 0
\n" ); document.write( "3 -0.75
\n" ); document.write( "4 -1
\n" ); document.write( "5 -0.75
\n" ); document.write( "6 0
\n" ); document.write( "7 1.25
\n" ); document.write( "8 3
\n" ); document.write( "1.
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Algebra.Com's Answer #826750 by greenestamps(13198)\"\" \"About 
You can put this solution on YOUR website!


\n" ); document.write( "The two zeros are given as x=2 and x=6.

\n" ); document.write( "You could start with that, knowing that the equation is of the form

\n" ); document.write( "\"f%28x%29=a%28x-2%29%28x-6%29\"

\n" ); document.write( "Then determine the value of a using any of the given points. e.g.,

\n" ); document.write( "\"f%280%29=a%28-2%29%28-6%29=12a=3\" --> \"a=1%2F4\"

\n" ); document.write( "Then one form of the equation is

\n" ); document.write( "\"f%28x%29=%281%2F4%29%28x-2%29%28x-6%29\"

\n" ); document.write( "Reformat it into any form you want.

\n" ); document.write( "Alternatively, with the zeros at x=2 and x=6, you know the axis of symmetry is x=4; and since f(4)=-1, you know the vertex is (4,-1). Then you could start with vertex form,

\n" ); document.write( "\"f%28x%29=a%28x-h%29%5E2%2Bk\"
\n" ); document.write( "\"f%28x%29=a%28x-4%29%5E2-1\"

\n" ); document.write( "Again determine the value of a by using any of the given data points (except (4,-1))

\n" ); document.write( "\"f%280%29=a%28-4%29%5E2-1+=+16a-1+=+3\"
\n" ); document.write( "\"16a=4\"
\n" ); document.write( "\"a=1%2F4\"

\n" ); document.write( "And so

\n" ); document.write( "\"f%28x%29=%281%2F4%29%28x-4%29%5E2-1\"

\n" ); document.write( "Again reformat that in any way you need to.

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