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D1 Edexcel 2016 Mark Scheme unofficial - not complete

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imaginary version

Feel free to comment/add your own to complete it. It would be very much appreciated.

https://www.scribd.com/doc/316063702/D1

The question on trace table, t=0, it asked if X was even, if yes, X=X-1 y=y t=y+t, if no go to the next question does X equal 0. If no go round back up to if X is even, x=X/2 y=2y t=t, go round again until X equals 0, whatever t equals it is your output. Can't quite remember what I got, not sure if it was in the hundreda. Seconds part asked what value of X would be most appropriate, either 122, or a 1/2. Answer was 122, because if it was 1/2, your output could never equal 0. For the final part input 122 as X and y as 1/2, run through the trace table again, and state your output, got something like 61

Reply 21

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Original post by orianag@hightown

What was the equation of the objective line??

People are saying
"maximise C=x+1.5y"

Reply 22

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Original post by cookiemonster15

Screw my life.

Do you happen to know if you get follow through marks if you get the objective line wrong?

Well, I've checked some linear programming questions and mark schemes and most dont mention an ECF, so maybe not...
I've seen some saying 'accept attempt at objective line' but i have no idea, sorry