document.write( "Question 897132: Please help me. I have no clue on what numbers to use for this parabola since my Y intercepts come out as big numbers.
\n" ); document.write( "I need to sketch the parabola with the equation 4x^2-16x+15 and label the vertex, axis of symmetry, x and y intercepts. Should I divide by 4?
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Algebra.Com's Answer #543997 by richwmiller(17219)\"\" \"About 
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y=4x^2-16x+15
\n" ); document.write( "y = (2x-5)*(2x-3)
\n" ); document.write( "let x=0 y=15
\n" ); document.write( "let x=1 y=3
\n" ); document.write( "let x=2 y=-1
\n" ); document.write( "min{y = 4 x^2-16 x+15} = -1 at x = 2
\n" ); document.write( "parabola
\n" ); document.write( "focus | (2, -15/16)~~(2, -0.9375)
\n" ); document.write( "vertex | (2, -1)
\n" ); document.write( "semi-axis length | 1/16 = 0.0625
\n" ); document.write( "focal parameter | 1/8 = 0.125
\n" ); document.write( "eccentricity | 1
\n" ); document.write( "directrix | y = -17/16\r
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