document.write( "Question 1084015: Which function's graph has a vertex at (-3,-4)and contains the point (-6,-7)?
\n" ); document.write( "A. y=-1/3(x+3)^2-4
\n" ); document.write( "B. y=-1/3(x-3)^2-4
\n" ); document.write( "C. y=-3(x-3)^2-4
\n" ); document.write( "D. y=-3(x+3)^2-4
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Algebra.Com's Answer #698073 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "Which function's graph has a vertex at (\"-3\",\"-4\")and contains the point (\"-6\",\"-7\")?\r
\n" ); document.write( "\n" ); document.write( "use vertex formula \"y=a%28x-h%29%5E2%2Bk\" where \"h\" and \"k\" are coordinates of the vertex
\n" ); document.write( "A.
\n" ); document.write( "\"y=-%281%2F3%29%28x%2B3%29%5E2-4\"...-> \"h=-3\" and \"k=-4\"; so, this function has a vertex at (\"-3\",\"-4\")\r
\n" ); document.write( "\n" ); document.write( "now check the point (\"-6\",\"-7\")
\n" ); document.write( "\"-7=-%281%2F3%29%28-6%2B3%29%5E2-4\"
\n" ); document.write( "\"-7=-%281%2F3%29%28-3%29%5E2-4\"
\n" ); document.write( "\"-7=-%281%2Fcross%283%29%29cross%289%293-4\"
\n" ); document.write( "\"-7=-3-4\"
\n" ); document.write( "\"-7=-7\"-> since true, this is your answer\r
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\n" ); document.write( "\n" ); document.write( "no need to check other options
\n" ); document.write( "B.
\n" ); document.write( "\"y=-%281%2F3%29%28x-3%29%5E2-4\"-> not answer
\n" ); document.write( "C. \"y=-3%28x-3%29%5E2-4\"-> not answer
\n" ); document.write( "D. \"y=-3%28x%2B3%29%5E2-4\"-> not answer\r
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