document.write( "Question 674319: For each equation, identify the equation of the axis of symmetry, the coordinates of the vertex, the y-intercept, the zeros, and the maximum or minimum values.\r
\n" ); document.write( "\n" ); document.write( "y = x2 + 4x + 3
\n" ); document.write( "y = -2(x - 3)2 + 9
\n" ); document.write( "y = 3(x - 0.5)2\r
\n" ); document.write( "\n" ); document.write( "Help please? \n" ); document.write( "
Algebra.Com's Answer #419316 by lwsshak3(11628)\"\" \"About 
You can put this solution on YOUR website!
For each equation, identify the equation of the axis of symmetry, the coordinates of the vertex, the y-intercept, the zeros, and the maximum or minimum values.
\n" ); document.write( "y = x2 + 4x + 3
\n" ); document.write( "y = -2(x - 3)2 + 9
\n" ); document.write( "y = 3(x - 0.5)2
\n" ); document.write( "**
\n" ); document.write( "All 3 given equations are parabolas and take the standard form: y=A(x-h)^2+k, (h,k)=(x,y) coordinates of the vertex. A is a coefficient that affects the width of the curve. If A>0, parabola opens upwards and parabola has a minimum. If A<0, parabola opens downwards and parabola has a maximum.
\n" ); document.write( "..
\n" ); document.write( "y = x^2 + 4x + 3
\n" ); document.write( "complete the square
\n" ); document.write( "y = (x^2+4x+4)+3-4
\n" ); document.write( "y = (x+2)^2-1
\n" ); document.write( "vertex: (-2,-1)
\n" ); document.write( "axis of symmetry: x=-2
\n" ); document.write( "minimum: -1
\n" ); document.write( "..
\n" ); document.write( "y-intercept
\n" ); document.write( "set x=0
\n" ); document.write( "y=3 (from original equation)
\n" ); document.write( "..
\n" ); document.write( "x-intercepts (zeros)
\n" ); document.write( "set y=0
\n" ); document.write( "(x+2)^2-1=0
\n" ); document.write( "(x+2)^2=1
\n" ); document.write( "x+2=±√1=±1
\n" ); document.write( "x=-2±1
\n" ); document.write( "x=-3 and -1
\n" ); document.write( "..
\n" ); document.write( "I will let you do the remaining 2 equations\r
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