document.write( "Question 188482: find the coordinates of the vertex & y-intercept of the parabola y=x^2+4x \n" ); document.write( "

Algebra.Com's Answer #141295 by Mathtut(3670) $\"\"$ $\"About$

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$\"y=x%5E2%2B4x%2B4%29-4\"$
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\n" ); document.write( " $\"y=%28x%2B2%29%5E2-4\"$
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\n" ); document.write( "vertex is at (-2,-4)
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\n" ); document.write( "y intercept is found when setting x t zero
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\n" ); document.write( " $\"y=0%5E2%2B4%280%29=0\"$ .......so y intercept is 0: (0,0) \n" ); document.write( "

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