c3 25th January 2013 exam

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I didn't tidy up my answer like you guys...I left it as ln(0.5)/-0.25 :awkward: will it still be ok?

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I think it would be fine, my friend (who's really good in maths) left it as
ln(0.5)/-0.25 too. remember in the Mark scheme they say ( an answer or eq). So probably your answer would be fine.

(edited 11 years ago)

Reply 201

SuziieB

Original post by StrawHat_Shifaz

and what was the answer for that ff(-3) question? is it +2?

Yeah, it was

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Reply 202

SuziieB

Original post by shumen9523

I think it would be fine, my friend (who's really good in maths) left it as
ln(0.5)/-0.25 too. remember in the Mark scheme they say ( an answer or eq). So probably your answer would be fine.

Thanks. I would hate it if I did all the working out, got the right answer but left it in the wrong format and lost a mark, lol.

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Reply 203

kvohra

For the last question I recognised that it was a quadratic but got a ludicrous answer (36 I think). How many marks do you think I will get?

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Reply 204

A*'s

Original post by Cosectant

Lol, as much as I am overwhelmed with such compliments - sadly, I am not John! :P - Nice to meet you though!

You too

Just texted John to make sure...he's basking in the Californian sun... Whilst we're freezing in the British weather ... :frown:

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Reply 205

StrawHat_Shifaz

Original post by SuziieB

Yeah, it was

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omg really! i remember there was a question like that in the pastpapers! and the answers was the the y of the other coordinate! lol lucky lucky! and is there any workings to show?

Reply 206

kvohra

Original post by StrawHat_Shifaz

omg really! i remember there was a question like that in the pastpapers! and the answers was the the y of the other coordinate! lol lucky lucky! and is there any workings to show?

f(f(-3)) = ff(-3)

f(-3) = 0

So ff(-3) = f(0)

f(0) was the other coordinate with y value of 2

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Reply 207

Cosectant

Original post by StrawHat_Shifaz

omg really! i remember there was a question like that in the pastpapers! and the answers was the the y of the other coordinate! lol lucky lucky! and is there any workings to show?

There's not much working to go with it. When you have ff(x), it means, put x into f(x) and then put that value of f(x) into f(x) again. So the first time you put x = -3, you can read from the graph that f(-3) = 0, then you put f(-3) back into f(x), so f(0), which will give you 2 :smile:

Reply 208

shumen9523

Since we're now officially waiting for our hero Arsey to post the UMS, how did you guys found this paper compared to the previous papers ???

Reply 209

StrawHat_Shifaz

Original post by Cosectant

well, i didnt show any workings, and just wrote 2. would i get full marks?

Reply 210

Cosectant

Original post by StrawHat_Shifaz

well, i didnt show any workings, and just wrote 2. would i get full marks?

I'm not sure if you would since it was a two mark question and considering you could just guess the correct value from the graph, I think you'll only get the one mark.

Reply 211

StrawHat_Shifaz

Original post by shumen9523

Since we're now officially waiting for our hero Arsey to post the UMS, how did you guys found this paper compared to the previous papers ???

this paper was let's say average. there are a lot harder papers than this and a lot easier ones too! so this one's malcolm in the middle! :colondollar:

Reply 212

shumen9523

Original post by StrawHat_Shifaz

this paper was let's say average. there are a lot harder papers than this and a lot easier ones too! so this one's malcolm in the middle! :colondollar:

I have to agree. :smile:

I think that this paper was an average paper compared to the previous years. Others may disagree though.

Reply 213

Samira123

I remember when I use to complain about finding the range for 1 mark.
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Reply 214

ManUtdFan1990

Just found out i missed the last part of a question off, the one about h(x)? apparently it was find the range of the function? does anyone know how many marks thats worth?

Reply 215

TDL

Original post by ManUtdFan1990

Just found out i missed the last part of a question off, the one about h(x)? apparently it was find the range of the function? does anyone know how many marks thats worth?

was 4 marks

pretty sure the range is 0 <= h(x) <= root(5)/5

not sure though

Reply 216

PlutoMars

Original post by ManUtdFan1990

Just found out i missed the last part of a question off, the one about h(x)? apparently it was find the range of the function? does anyone know how many marks thats worth?

3/4/5

Reply 217

ManUtdFan1990

Original post by TDL

was 4 marks

pretty sure the range is 0 <= h(x) <= root(5)/5

not sure though

Hopefully it was just 4, i think i got every other mark, just a shame to miss it though...

Reply 218

Samira123

Original post by ManUtdFan1990

Just found out i missed the last part of a question off, the one about h(x)? apparently it was find the range of the function? does anyone know how many marks thats worth?