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# Maths help Watch

What is the distance between the vertex of the parabola given by equation y = x2
–4x+2
and its cross-section with x axis?
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Just quoting in Fox Corner so she can move the thread if needed
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(Original post by Fox Corner)
x
3. (Original post by Seemie)
What is the distance between the vertex of the parabola given by equation y = x2
–4x+2
and its cross-section with x axis?
Are there any brackets in that equation?
4. (Original post by Seemie)
What is the distance between the vertex of the parabola given by equation y = x2
–4x+2
and its cross-section with x axis?
It's asking you to find the length of the green line here:
5. I have never ever heard of the term "cross section with the axis". Is this some strange terminology?
6. (Original post by mik1a)
I have never ever heard of the term "cross section with the axis". Is this some strange terminology?
Not one I've heard of before but it makes sense to word it that way.

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