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Mathematics 7 Online
OpenStudy (anonymous):

Which equation has this graph?

OpenStudy (anonymous):

OpenStudy (anonymous):

Answer choices available: A. y = x2 - 6x + 5 B. y = -x2 - 6x + 5 C. y = -x2 - 6x - 5 D. y = x2 + 6x - 5

OpenStudy (heisenberg):

You said you tried plugging in some points from the graph in these equations? What points did you choose?

OpenStudy (anonymous):

Oh that was for a different equation. This one is a new one.

OpenStudy (heisenberg):

Ah, well same method should work. There are two points that are very easy to spot here: the "zeros" of the graph: (1,0) and (5,0) do you see that?

OpenStudy (anonymous):

Not exactly.. :/ I don't get this one.

OpenStudy (heisenberg):

So can you tell me any point on that graph? A point is an x and y coordinate.

OpenStudy (anonymous):

1 and 3? I don't know. :(

OpenStudy (heisenberg):

A point looks like this: (x, y). These numbers correspond to points on graphs. Do you see how (1,0) lies on that graph? Do you see how (0,0) does not?

OpenStudy (anonymous):

Yeah I suppose.

OpenStudy (heisenberg):

|dw:1327095609111:dw| like that^

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