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write the equation y=x^23x in vertex form. What is the vertex and the axis of symmetry?
 one year ago
 one year ago
write the equation y=x^23x in vertex form. What is the vertex and the axis of symmetry?
 one year ago
 one year ago

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MertsjBest ResponseYou've already chosen the best response.1
You need to complete the square.
 one year ago

MertsjBest ResponseYou've already chosen the best response.1
First factor out the negative 1
 one year ago

thatjacksonguyBest ResponseYou've already chosen the best response.0
thats what i dont know how to do
 one year ago

MertsjBest ResponseYou've already chosen the best response.1
Take 1/2 of the coefficient of x and square it. Add that to the x^2 and x term (which is really subtracting it since there is a minus sign outside the parentheses) so then add it again.
 one year ago

MertsjBest ResponseYou've already chosen the best response.1
There is an alternate way that might be easier. The x coordinate of the vertex is b/2a. Calculate that then plug it back in to find the y coordinate. The axis of symmetry is the vertical line that goes through the vertex.
 one year ago

thatjacksonguyBest ResponseYou've already chosen the best response.0
ill try them both thanx again,,, looks like your saving my life tonight XD
 one year ago
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