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Gradient/equation?

Hi

Can someone help me with this question?
I've never learnt this... :smile:

http://i.imgur.com/cpF6Uf0.jpg

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Difference in y divided by difference in x is the gradient.
Original post by _Xenon_
Hi

Can someone help me with this question?
I've never learnt this... :smile:

http://i.imgur.com/cpF6Uf0.jpg


Do you know how the equation of a line is worked out?
Reply 3
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Zacken
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Original post by _Xenon_
Hi

Can someone help me with this question?
I've never learnt this... :smile:

http://i.imgur.com/cpF6Uf0.jpg


Surely you know how to find the gradient of a line?

It's change in y over change in x.

You can see two points (4,5)(4,5) and (0,−1)(0, -1)

The change in yy is 5−(−1)=65 - (-1) = 6 and the change in xx is 4−0=44 - 0 = 4, so the gradient is...?
Reply 4
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_Xenon_
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Original post by Slowbro93
Do you know how the equation of a line is worked out?


Original post by Vikingninja
Difference in y divided by difference in x is the gradient.


No I've never done this in my life lol.
Original post by Zacken
Surely you know how to find the gradient of a line?

It's change in y over change in x.

You can see two points (4,5)(4,5) and (0,−1)(0, -1)

The change in yy is 5−(−1)=65 - (-1) = 6 and the change in xx is 4−0=44 - 0 = 4, so the gradient is...?


Original post by _Xenon_
No I've never done this in my life lol.


Can I ask that you read this: https://www.mathsisfun.com/gradient.html

And then see if you are having problems then?
Original post by _Xenon_
No I've never done this in my life lol.


Get two points along the line. Get the difference in y between the points and the same for the difference in x. Then difference in y divided by difference in x.
Reply 7
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Zacken
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Original post by _Xenon_
No I've never done this in my life lol.


Original post by Slowbro93
Can I ask that you read this: https://www.mathsisfun.com/gradient.htmlAnd then see if you are having problems then?



I was going to suggest that you watch this set of videos: https://www.khanacademy.org/math/algebra/two-var-linear-equations/slope/v/introduction-to-slope :lol:
Reply 8
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_Xenon_
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Original post by Zacken
Surely you know how to find the gradient of a line?

It's change in y over change in x.

You can see two points (4,5)(4,5) and (0,−1)(0, -1)

The change in yy is 5−(−1)=65 - (-1) = 6 and the change in xx is 4−0=44 - 0 = 4, so the gradient is...?


Well that will be 6/4 which is 1.5?
Reply 9
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Zacken
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Original post by _Xenon_
Well that will be 6/4 which is 1.5?


Yes, that's correct.
Reply 10
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_Xenon_
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Original post by Zacken


I prefer the videos thanks for sharing it.
Original post by Zacken


I do forget about Khan academy as a resource :tongue:

Original post by _Xenon_
Well that will be 6/4 which is 1.5?


That is correct, however given that you don't fundamentally understand the concept, try and look at the stuff Zacken and myself have presented to you and then we can then help you with the question afterwards :smile: It will be easier for you :smile:
Reply 12
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Zacken
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Original post by Slowbro93
That is correct, however given that you don't fundamentally understand the concept, try and look at the stuff Zacken and myself have presented to you and then we can then help you with the question afterwards :smile: It will be easier for you :smile:


Seconded. :smile:
Reply 13
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_Xenon_
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Original post by Slowbro93
I do forget about Khan academy as a resource :tongue:



That is correct, however given that you don't fundamentally understand the concept, try and look at the stuff Zacken and myself have presented to you and then we can then help you with the question afterwards :smile: It will be easier for you :smile:


Thanks you guys are like free tutors. :tongue:
Reply 14
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_Xenon_
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Do I need to know about slope? Which video specifically or all of them?
Original post by _Xenon_
Thanks you guys are like free tutors. :tongue:


That's what we're here for :ahee:
Reply 16
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Zacken
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Original post by _Xenon_
Do I need to know about slope?


Slope is the american word for "gradient". :tongue:
Reply 17
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Notnek
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Original post by _Xenon_
Thanks you guys are like free tutors. :tongue:

Zacken charges.

Expect a bill after the exam.
Reply 18
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_Xenon_
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Original post by Zacken
Slope is the american word for "gradient". :tongue:


Oh Americans make everything confusing! Lol
Reply 19
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Zacken
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Sneaky notnek pm-ing me and asking for a 75% cut of the tuition fees.

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