Which is true of the graph of the parabola whose equation is y = x2 – 2x – 8?
Select all statements that are true.
The x-intercepts are at (-2, 0) and (4,0).
The vertex or turning point of the parabola is at (1, -9)
O This parabola has a maximum.
There are no x-intercepts.
The y-intercept is at (-8, 0)
The x-intercepts are at (-8, 0) and (0,0).
There is no y-intercept.

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

answ5

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