UNOFFICIAL MARKSCHEME Edexcel Maths Calculator paper 09/06/2016

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For the graph question, i plotted all the points correctly but joined them instead of joining with a curve, will i lose marks for this?

generally yes you would, as you learn that a x*3 graph is curved.

Reply 1781

ad4m

Original post by AQAbio/business

For the graph question, i plotted all the points correctly but joined them as straight lines instead of joining with a curve, will i lose marks for this?

I don't think so. Due to the fact that there was nothing you had to do with the graph after drawing it. If you had to work out values etc. like in the non calc that would be another story....

Reply 1782

Edgerulezs

Original post by Smileyfacecloud

Can anyone show me the work solution for question 20? 3x^2+6x-2
I got totally different answers

Reply 1783

Kobra0319

Original post by Nortexg

Yeah I used the answer button and wrote down one other working fully. My final calculator answer was 80.4755... To three significant figures it's 80.48 as the 0 is not a significant figure.

In 80.48 3 s.f would be 80.5
The zero when in the middle is a significant figure. When a number is 42.20 it can be written as 42.2. As 0 is not an sf in that

Reply 1784

GKT

Original post by anna-mackinlay

I did

Have you got the mark scheme

Reply 1785

Rxkaa

its 100% 3.8 because 3.75 rounds up to 3.8 (1dp)????

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Reply 1786

AQAbio/business

And whats all the confusion about the trial and error? Its 3.8 :smile:

Reply 1787

Smileyfacecloud

Original post by Maphec

can someone explain question 15, the car depreciation as i got the answer as yes?

He bought the car for £15000
In the first year it lost 23% of its value so, your multiplier for that part would be 0.77
15000x0.77= £11,550
Then for the next two years it lost 18%, so here your multiplier would be 0.82. So you would either do:
11,550x0.82^2=£7,766.22
Or
11,550x0.82=£9471
9471x0.82= £7,766.22

1/2 of £15000 is £7500 and £7766.22 is higher so it has not lost more than half its original value.

Reply 1788

lolnookay123

Question 7 is 3.7
Trial and improvement! 34 is closer to the 3.7 solution than the 3.8 one

Reply 1789

Rxkaa

For the last question i only worked up until finding 5.26 how many marks would i get. I counted 87 in total. If anyones looking for the paper here is the link to a yt vid but it doesnt have the 1st question and he got the bar question wrong (the answer is 3 bars)

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Reply 1790

Rxkaa

https://youtu.be/ahe6jmuT2DM

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Reply 1791

Georgia Hermione

if i said 45% for the second part of stem and leaf would i still get the marks

Reply 1792

Rxkaa

It was 3.75 tho not 3.7 which rounds up to 3.8(1dp)

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Reply 1793

Smileyfacecloud

Original post by Edgerulezs

Thank you I saw where I went wrong now.

Reply 1794

...???

For stem and leaf do u have to put 9/20 as a decimal to get the full marks

Reply 1795

densab11

What if I used 3.142 for pie?

Reply 1796

anna-mackinlay

Original post by GKT

Have you got the mark scheme

http://www.thestudentroom.co.uk/showthread.php?t=4153261&p=65600663#post65600663

This is someone elses answers so don't guarntee that they are all correct but its a rough overview. I'll keep looking out for another one