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# Coordinate geometry Watch

1. Please I need help with the following questions real bad. I need to due it by Friday. Thanks
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2. (Original post by strangepath)
Please I need help with the following questions real bad. I need to due it by Friday. Thanks
So in the first pic, only the value of a is correct.

Notice

is on the x axis, so what must c be?

For the coordinate of b, look across to a point along the line.

For the Q in the second pic, note that the product of the slopes of perpendicular lines is -1.
3. (Original post by strangepath)
Please I need help with the following questions real bad. I need to due it by Friday. Thanks
anything in particular?
4. (Original post by strangepath)
Please I need help with the following questions real bad. I need to due it by Friday. Thanks
Do you need help with questions 4 and 6 on the 3rd image? Not sure if you need help on those or if they just ended up being in the pic when you tried to take a pic of the middle q.
5. (Original post by joostan)
anything in particular?
I find the last 2 pics really difficult but I would be really glad if you could help me with the rest of the questions.
6. (Original post by strangepath)
I find the last 2 pics really difficult but I would be really glad if you could help me with the rest of the questions.
What can you tell me about point N? (second last pic)
7. (Original post by Magenta96)
Do you need help with questions 4 and 6 on the 3rd image? Not sure if you need help on those or if they just ended up being in the pic when you tried to take a pic of the middle q.
Yeah I need help on those questions as well. Is it easy?
8. (Original post by strangepath)
Yeah I need help on those questions as well. Is it easy?
For q 4 rearrange the equation to make y the subject, then you should be able to manage from there.
9. (Original post by joostan)
What can you tell me about point N? (second last pic)
I have no clue. Sorry
10. (Original post by strangepath)
I have no clue. Sorry
See what it is directly below?
And what it's y coordinate must be as it is on the axis?
11. (Original post by joostan)
See what it is directly below?
And what it's y coordinate must be as it is on the axis?
It is below Point B?
and the y coordinate must be 0?

So N is (2,0)?
12. (Original post by strangepath)
It is below Point B?
and the y coordinate must be 0?

So N is (2,0)?
Precisely Now, how long is the line BN?
13. (Original post by joostan)
Precisely Now, how long is the line BN?
14. (Original post by strangepath)
Yes it is. Now what about AC?
15. (Original post by joostan)
Yes it is. Now what about AC?
AC = 8?
Area of ABC = 16?
BC = 5?

are the above correct?

I don't know how to do the length of AM.
16. (Original post by strangepath)
AC = 8?
Area of ABC = 16?
BC = 5?

are the above correct?

I don't know how to do the length of AM.
Yes they are all correct
You know the area of the triangle. were you to rotate the page to make BC the base, would this affect the area of the triangle?
17. (Original post by joostan)
Yes they are all correct
You know the area of the triangle. were you to rotate the page to make BC the base, would this affect the area of the triangle?
WOW that's a very interesting question. Let me guess mhmm yes?
18. (Original post by strangepath)
WOW that's a very interesting question. Let me guess mhmm yes?
No. . .
19. (Original post by joostan)
No. . .
Oh

how do i solve the length of AM though?
20. (Original post by joostan)
No. . .
I am such an idiot, the answer was written right there

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