document.write( "Question 541777: What are the x intercepts of the parabola wiht a vertex(3,-2) and y-intercept (0,-7) \n" ); document.write( "
Algebra.Com's Answer #354363 by lwsshak3(11628)\"\" \"About 
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What are the x intercepts of the parabola with a vertex(3,-2) and y-intercept (0,-7)
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\n" ); document.write( "Standard form of equation for a parabola: y=A(x-h)^2+k, (h,k)=(x,y) coordinates of the vertex.
\n" ); document.write( "For given parabola:
\n" ); document.write( "y=A(x-h)^2+k
\n" ); document.write( "y=A(x-3)^2-2
\n" ); document.write( "using coordinates of given point (0,-7)
\n" ); document.write( "-7=A(0-3)^-2
\n" ); document.write( "-7=A(3)^2-2
\n" ); document.write( "9A=-5
\n" ); document.write( "A=-5/9
\n" ); document.write( "Equation of given parabola:
\n" ); document.write( "y=A(x-3)^2-2
\n" ); document.write( "y=(-5/9)(x-3)^2-2
\n" ); document.write( "..
\n" ); document.write( "x-intercepts:
\n" ); document.write( "set y=0
\n" ); document.write( "(-5/9)(x-3)^2-2=0
\n" ); document.write( "-5(x-3)^2=2
\n" ); document.write( "(x-3)^2=-2/5
\n" ); document.write( "(x-3)=√(-2/5)
\n" ); document.write( "x=√(-2/5)+3
\n" ); document.write( "no real number solution
\n" ); document.write( "x-intercepts: none
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