document.write( "Question 815009: Find the vertex, focus, and directrix of the parabola
\n" ); document.write( "Y^2+14y+4x+45=0
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Algebra.Com's Answer #490653 by TimothyLamb(4379)\"\" \"About 
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y^2 + 14y + 4x + 45 = 0
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\n" ); document.write( "-y^2 - 14y - 45 = 4x
\n" ); document.write( "x = -0.25y^2 - 3.5y - 11.25
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\n" ); document.write( "the above quadratic equation is in standard form, with a=-0.25, b=-3.5, and c=-11.25
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\n" ); document.write( "to solve the quadratic equation, plug this:
\n" ); document.write( "-0.25 -3.5 -11.25
\n" ); document.write( "into this: https://sooeet.com/math/quadratic-equation-solver.php
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\n" ); document.write( "note:
\n" ); document.write( "the above solver is for parabolas with vertical axes of symmetry:
\n" ); document.write( "Y(x) = ax^2 + bx + c
\n" ); document.write( "the problem parabola has a horizontal axis of symmetry:
\n" ); document.write( "x = ay^2 + by + c
\n" ); document.write( "so just flip x and y in the solver's results, as done below:
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\n" ); document.write( "vertex is a maximum at ( 1, -7 )
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\n" ); document.write( "focus is ( 0, -7 )
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\n" ); document.write( "directrix is x = 2
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\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
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\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
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\n" ); document.write( "Convert fractions, decimals, and percents:
\n" ); document.write( "https://sooeet.com/math/fraction-decimal-percent.php
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\n" ); document.write( "Calculate and graph the linear regression of any data set:
\n" ); document.write( "https://sooeet.com/math/linear-regression.php
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