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# [Official Thread] OCR MEI AS Mathematics 2016 (C1, C2 & S1) watch

1. (Original post by Kira Yagami)
For the one where you had to translate the graph, you shifted it 3 units to the right parallel to the x axis right

for the coodinates of intersection did you put (2, 0.21) or something
I put x=1.9 y=0.3 as the estimate, my line wasnt the bes but I think if you are within a couple of decimal places then its fine
2. Hey, how many marks would i get if i put k > -15/2, I think thst what i put so would i only lose one mark for the incorrect inequality?
3. (Original post by ionic285)
I put x=1.9 y=0.3 as the estimate, my line wasnt the bes but I think if you are within a couple of decimal places then its fine
There was one where you had to find the intersection with the axis (the last question part i)

I got something like 1,0 , 1.5,0

and intersects y at 0,-3
4. (Original post by Grindle97)
Hey, how many marks would i get if i put k > -15/2, I think thst what i put so would i only lose one mark for the incorrect inequality?
If you showed sufficient working I think you'd get all marks but one.
5. I'm just going to list my answers to see if people agree with them.... (They may not be in the exact order and I may have fOr gotten some, but I will try and write down the question bit too)
1. 3^0= 1
9^3/2 =27
(4/5)^-2= 25/16
2. (1-2x)/4>3 = x>-11/2
3. (5c^2d)^3 / (2c^4)/ d^5 = 250c^10d^-2

4. One with intercepts of two lines x=9/7 and y=22/9
5. Root 50 + 2root8= 11root2

ii. Other surds question= 2+root3

6.
Remainder of f(2) is 11 remainder of (x+1) is 11 f(x)= x^3+ax+c
A=-2 and c=7

7. Expand (1-5x)^4
1-20x+150x^2- 500x^3 + 625x^4

8. Find minimum and then Sketch graph of (x-2)^2=9
Minimum at (2,-9)
Crosses x axis at -1 and 5 and y axis at -5
6. (Original post by Octavian_190)
I'm just going to list my answers to see if people agree with them.... (They may not be in the exact order and I may have fOr gotten some, but I will try and write down the question bit too)
1. 3^0= 1
9^3/2 =27
(4/5)^-2= 25/16
2. (1-2x)/4>3 = x>-11/2
3. (5c^2d)^3 / (2c^4)/ d^5 = 250c^10d^-2

4. One with intercepts of two lines x=9/7 and y=22/9
5. Root 50 + 2root8= 11root2

ii. Other surds question= 2+root3

6.
Remainder of f(2) is 11 remainder of (x+1) is 11 f(x)= x^3+ax+c
A=-2 and c=7

7. Expand (1-5x)^4
1-20x+150x^2- 500x^3 + 625x^4

8. Find minimum and then Sketch graph of (x-2)^2=9
Minimum at (2,-9 4 which i got y=22/7
Crosses x axis at -1 and 5 and y axis at -5
I got the same as that apart from for 4 where i got y=22/7
7. (Original post by Tyler213)
Got wrong final answer to the last question but still used the discriminant, how many marks will i lose? 1?
I think they give 1 or 2 marks for the discriminant.
8. For the second surds one, what was the question again?
9. How many marks was the last question cos i got k <-3/2. Also how many marks dyu think i will lose for forgettting to find the point of intersection
10. (Original post by Octavian_190)
7. Expand (1-5x)^4
1-20x+150x^2- 500x^3 + 625x^4
It said expand as simple as possible so I thought you're supposed to leave it still with the brackets
11. For the tangent to the circle I got 2y=2x+12

I think
12. For the tangent to the circle I got 2y=x+12

I think

Unofficial mark scheme (WIP).
14. (Original post by Grindle97)
I got the same as that apart from for 4 where i got y=22/7
Yes it should be y=22/7 (typo)
15. (Original post by Octavian_190)
I'm just going to list my answers to see if people agree with them.... (They may not be in the exact order and I may have fOr gotten some, but I will try and write down the question bit too)
1. 3^0= 1
9^3/2 =27
(4/5)^-2= 25/16
2. (1-2x)/4>3 = x>-11/2
3. (5c^2d)^3 / (2c^4)/ d^5 = 250c^10d^-2

4. One with intercepts of two lines x=9/7 and y=22/9
5. Root 50 + 2root8= 11root2

ii. Other surds question= 2+root3

6.
Remainder of f(2) is 11 remainder of (x+1) is 11 f(x)= x^3+ax+c
A=-2 and c=7

7. Expand (1-5x)^4
1-20x+150x^2- 500x^3 + 625x^4

8. Find minimum and then Sketch graph of (x-2)^2=9
Minimum at (2,-9)
Crosses x axis at -1 and 5 and y axis at -5
I think this all right except for q4) I got y=22/7

17. Does anyone have the unofficial mark scheme? Think I messed up question 8 I got a=-10 and c=some positive fraction I can't quite remember. I thought this paper was quite hard compared to some of the other past papers I have done
18. (Original post by Kira Yagami)
For the tangent to the circle I got 2y=x+12

I think
I'm sure I got 4y=3x+22
19. (Original post by Grindle97)
I got the same as that apart from for 4 where i got y=22/7
You got question 2 wrong you have to flip the sign when you multiply through
20. You have got question 1ii wrong it was + or - 27

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