Gcse maths question on lines

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TheTruthTeller
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#1
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#1
ImageCan anyone show me how to do this question please.

thanks
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2-ethylbut-1-ene
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#2
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#2
My bad

This question is tough

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TenOfThem
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#3
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(Original post by TheTruthTeller)
Can anyone show me how to do this question please.

thanks
You know the coordinates of B and C

The fact that AB = BC means you can find A

Given you have A and D you should be able to find the equation
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TenOfThem
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#4
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(Original post by 2-ethylbut-1-ene)
The gradient, (m), of abc is -1/2. Therefore, the gradient of DA will be 2, as they are perpendicular lines
What makes you think that the lines are perpendicular?
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2-ethylbut-1-ene
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(Original post by TenOfThem)
What makes you think that the lines are perpendicular?
My bad lol :smug:

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TheTruthTeller
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#6
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#6
Any help lol
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TenOfThem
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#7
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(Original post by TheTruthTeller)
Any help lol
Have you even looked at post 3
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TheTruthTeller
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#8
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(Original post by TenOfThem)
Have you even looked at post 3
yes I already know that information. But I don't know how to work out the equation, so if you don't mind can you explain it for me please?
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TenOfThem
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#9
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(Original post by TheTruthTeller)
yes I already know that information. But I don't know how to work out the equation, so if you don't mind can you explain it for me please?
When you have two points on a line

Find the gradient

Then use one of the points to find the equation
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TheTruthTeller
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#10
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#10
Can somebody please do this step by step, I'm stuck!!
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TenOfThem
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#11
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(Original post by TheTruthTeller)
Can somebody please do this step by step, I'm stuck!!
I have told you ... And you said that you understood


Let's try again

Do you know the coordinates of B
Do you know the coordinates of C
Have you found the coordinates of A
Do you know the gradient of AD
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TheTruthTeller
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#12
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#12
(Original post by TenOfThem)
I have told you ... And you said that you understood


Let's try again

Do you know the coordinates of B
Do you know the coordinates of C
Have you found the coordinates of A
Do you know the gradient of AD
Coordinates of b I think are 0,5
cooridnates of c Idk
cooardinatws of a idk
gradient of ad idk.

could you specifically tell me them And do the equation. I need to see it to understand it.
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TenOfThem
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#13
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#13
(Original post by TheTruthTeller)
Coordinates of b I think are 0,5
cooridnates of c Idk
cooardinatws of a idk
gradient of ad idk.

could you specifically tell me them And do the equation. I need to see it to understand it.
I will not solve the problem

You need to think for yourself in order to understand

B is indeed (0,5)

What is y at point C? Use that to find the x co-ordinate of C
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TheTruthTeller
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#14
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#14
(Original post by TenOfThem)
I will not solve the problem

You need to think for yourself in order to understand

B is indeed (0,5)

What is y at point C? Use that to find the x co-ordinate of C
As you can see from the workings out I have already attempted to get the answer but failed. please don't comment on my thread if you aren't willing to help in the first place.
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TenOfThem
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#15
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#15
(Original post by TheTruthTeller)
As you can see from the workings out I have already attempted to get the answer but failed. please don't comment on my thread if you aren't willing to help in the first place.
The rules of this forum are clear

However ... I can see that you wish to be told answers rather than to develop your understanding do I will avoid offering you any assistance in the future
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Mr M
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#16
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#16
(Original post by TheTruthTeller)
...
Behave or I will close your thread. TenOfThem is following the Forum Rules. We are expected to nudge you towards a solution rather than do your work for you.
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Mr M
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#17
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#17
(Original post by daniella_r)
..
Please read this.
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daniella_r
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#18
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#18
(Original post by Mr M)
Please read this.
Sorry I didn't consider it as posting the answer due to it being incorrect.
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Mr M
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#19
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#19
(Original post by daniella_r)
Sorry I didn't consider it as posting the answer due to it being incorrect.
Which bit do you think is incorrect?
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daniella_r
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#20
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#20
(Original post by Mr M)
Which bit do you think is incorrect?
The y intercept but then usually that means that the entire answer went wrong somewhere.
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