document.write( "Question 1205875: Select all the true statements for the quadratic function
\n" ); document.write( "f(x) = 5x² + 70x + 245.
\n" ); document.write( "Ⓐ The y-intercept of the function is −7.
\n" ); document.write( "Ⓑ The vertex of the function is at (−7, 0).
\n" ); document.write( "Ⓒ The function is symmetric about the line x = 7.
\n" ); document.write( "Ⓓ The function is decreasing when −∞ < x < −7.
\n" ); document.write( "Ⓔ The range of the function is all positive real numbers including zero.
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Algebra.Com's Answer #842943 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Select all the true statements for the quadratic function\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+=+5x%5E2+%2B+70x+%2B+245\"\r
\n" ); document.write( "\n" ); document.write( "write in vertex form \"f%28x%29+=+a%28x-h%29%5E2+%2B+k+\", where \"h\" and \"k\" are \"x+\"and \"y+\"coordinates of vertex\r
\n" ); document.write( "\n" ); document.write( "complete square\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+=+5%28x%5E2+%2B+14x%29+%2B+245\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+=+5%28x%5E2+%2B+14x%2Bb%5E2%29-5b%5E2+%2B+245\"......\"b=14%2F2=7\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+=+5%28x%5E2+%2B+14x%2B7%5E2%29-5%2A7%5E2+%2B+245\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+=+5%28x+%2B7%29%5E2-245+%2B+245\"\r
\n" ); document.write( "\n" ); document.write( "\"f%28x%29+=+5%28x+%2B7%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "=> \"h=-7\", \"k=0\"\r
\n" ); document.write( "\n" ); document.write( "answer: all the true statements are\r
\n" ); document.write( "\n" ); document.write( "B. The vertex of the function is at (\"-7\", \"0\").=>\"true\"\r
\n" ); document.write( "\n" ); document.write( "D. The function is decreasing when \"-infinity+%3C+x+%3C+-7\".=>\"true\"\r
\n" ); document.write( "\n" ); document.write( "E. The range of the function is all positive real numbers including zero.=>\"true\"\r
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\n" ); document.write( "\n" ); document.write( "\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+5%28x+%2B7%29%5E2%29+\"\r
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