AQA GCSE Further Maths Paper 2 17th June 2019 Unofficial Mark Scheme 17/06/2019 Watch

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Klander
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Please post your answers.



And enjoy your 10 week summer holiday!
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Klander
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Grade boundaries of the previous years:

year-----A^---A*---A---B---C---all out of 175

2018--150--121--92--66--40
2017--149--118--88--62--36
2016--148--117--86--61--37
2015--140--111--82--60--39
2014--144--114--85--60--36
2013--149--118--87--60--33
2012--145--112--80--55--30

(does any one knows what is A^ ?)
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UltimatePigster
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ez
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Maximus 190
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Did anyone get for the inequality of A
A is less than or equal to minus 9?
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sdr981
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What did you get for the inequality of a in the sqrt domain thing. I can't quite remember but I think it was a<=-9
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sdr981
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Yes
(Original post by Maximus 190)
Did anyone get for the inequality of A
A is less than or equal to 9?
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YasiinsG
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I got 21x^2 for the two triangles area
Dont know if it is right
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Maximus 190
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(Original post by sdr981)
What did you get for the inequality of a in the sqrt domain thing. I can't quite remember but I think it was a<=-9
**** yes
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sdr981
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"A Star with distinction"
(does any one knows what is A^ ?)
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Maximus 190
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(Original post by YasiinsG)
I got 21x^2 for the two triangles area
Dont know if it is right
Yes, I did it in a very long winded way. Used the cosine rule. 15x^2 for the top triangle, 6x^2 for the right angled triangle.
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sdr981
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Yeah that's what I got. Tried to do it originally by finding the angle then using 1/2absinc but that didn't work (think I misread something but it doesn't matter as I did another method) so I used pythag instead to get that.
(Original post by YasiinsG)
I got 21x^2 for the two triangles area
Dont know if it is right
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Klander
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I got a<=-9 aswell
(Original post by sdr981)
What did you get for the inequality of a in the sqrt domain thing. I can't quite remember but I think it was a<=-9
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rf14
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(Original post by YasiinsG)
I got 21x^2 for the two triangles area
Dont know if it is right
Me too!!
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rf14
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(Original post by Maximus 190)
Did anyone get for the inequality of A
A is less than or equal to 9?
I got the same but -9
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Mathskelvinlaw
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Factor theorem a= root 11
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Hassan2345
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What did you guys get for all the queations?
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sdr981
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I got that too
(Original post by rf14)
I got the same but -9
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Maximus 190
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(Original post by rf14)
I got the same but -9
When you completed the square it was (x ?)^2-9-a
You knew that -9-a is the co-ordinates for the minimum point and that the graph can’t go below 0 so -9-a >= 0

Therefore a<=-9

Oh yeah it was -9
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Maximus 190
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(Original post by sdr981)
I got that too
How?

Never mind being stupid
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rf14
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(Original post by Maximus 190)
When you completed the square it was (x ?)^2-9-a
You knew that -9-a is the co-ordinates for the minimum point and that the graph can’t go below 0 so -9-a >= 0

Therefore a<=9
The lowest that the (x 3)^2 could be is 0, therefore the lowest (x 3)^2-9 can be is -9, you need (x 3)^2-9-a to be positive in order to square root it so have to add at least 9 to the (x 3)^2-9 is always positive for any value. If you are subtracting a you need a to be negative for you to be increasing the value so a has to always be negative and less than -9, sorry if I’ve explained it in a very confusing way
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