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# Graph sketching watch

1. sketch the graph of
2. Lol. You're joking right?
3. (x-2)(x-3)

Start from top left, intersects x axis at 2 and 3, finishes top right.

But you're good at Maths, why ask?
4. (x-2)(x-3)

Start from top left, intersects x axis at 2 and 3, finishes top right.

But you're good at Maths, why ask?
5. I think he's playing a game with us!
6. (Original post by boromir9111)
.
(Original post by tehforum)
.
(Original post by Mr M)
.
but the equation says nothing about y. it says either or . so wouldn't it be two vertical lines at and ?
7. = 0 means = y I would imagine!
8. Oh I see what you mean. Look here:

http://www.jstor.org/pss/3614634

Odd/old people use notation like this.
9. (Original post by Pheylan)
sketch the graph of
That would just be two points if I'm not mistaken.
10. (Original post by Farhan.Hanif93)
That would just be two points if I'm not mistaken.
but that implies y=0
11. (Original post by Pheylan)
but that implies y=0
What is y?
12. (Original post by Pheylan)
but that implies y=0
What "y"? Your OP only mentions one variable. I go with Farhan.Hanif93 on this one.
13. It is an interesting question. You probably need to graph it on a number line rather than a plane.

I tried it in Autograph.

It couldn't cope with or .

However, produces two vertical lines at
14. (Original post by Pheylan)
but that implies y=0
True.
15. (Original post by ziedj)
What is y?
(Original post by ghostwalker)
What "y"? Your OP only mentions one variable. I go with Farhan.Hanif93 on this one.
well if you're asked to sketch on an xy plane, you draw a vertical line at x=2. why can't both lines be drawn?
16. Ah. I see where you're coming from.....it's one of those things that I accepted tbh!
17. (Original post by Pheylan)
well if you're asked to sketch on an xy plane, you draw a vertical line at x=2. why can't both lines be drawn?
I think specifying it's an xy plane is a key point.

And that being the case, plotting two lines would seem reasonable, as all points on those lines would satisfy that restriction.
18. Wolfram does this:

http://www.wolframalpha.com/input/?i...5E2-5x%2B6%3D0

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