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anonymous
 one year ago
How do you graph y=x^24x+3 I need the vertex, axis of symmetry, y and x axis as well
anonymous
 one year ago
How do you graph y=x^24x+3 I need the vertex, axis of symmetry, y and x axis as well

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phi
 one year ago
Best ResponseYou've already chosen the best response.1one way to do this is "complete the square" so that you can write the equation in the form y=a(xh)^2 +k see http://www.mathwarehouse.com/geometry/parabola/standardandvertexform.php

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How do you find the vertex I'm still a little confused

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0first complete the square x^24x+3 x^24x=3 4/2=2 2^2=4 so add four to both sides of the equation x^24x+4=1 now factor the left side of the equation to get (x2)^2=1 subtract 1 from both sides (x2)^21=0 This is now in the form (xh)^2+k the vertex is (h,k) so for your equation the vertex is (2,1) the axis of symmetry is x=k so x=1
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