Sorry - P7 Algebra Question

samhale

vivaladiva wrote: »

My DD who did maths GCSE this year, looked at this question and commented that trick questions are the norm, as are questions with more than one answer and errors in the textbooks:eek:.

I don't think it's a trick question, just unclear.

I don't seem to have trick questions in my text books, but certainly lots of errors

aliEnRIK

fletch3163 wrote: »

Hi everyone

I know this is the techie board but you lot have to be the smartest I've ever known. Now, I've not been to school for a long time and my 11 year old has an angebra question. I feel embarrassed, especially if it's going to be easy but here goes

choose "y" only from -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5

y > -5
y < -5

surely one of them has to be a trick?

For those who know the answer and are willing to help me, please be gentle, I'm astonished at my simpleton-ness
Thanks in anticipation

Im wondering if it IS a trick question.
Zero perhaps? Its bigger than -5, but as its zero (nothing at all) then its smaller then -5 (Which is at least something tangible)

flossy_splodge

fletch3163 wrote: »

It's 2 separate sums and they go like this:

In this question you must choose y only from the numbers, !!-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5}

y > 2
Y< 1
Y> -1
y > -5
y < -5

I'm not sure if you are now saying that the above is in fact the complete question and you just extracted the two parts you weren't sure of?
It looks to me like a simple question for testing the understanding of students of the symbols of > or = to and > or = to.

In which case there is more than one answer to each part.
ie.

From the range of values " y= -5, -4, -3, -2, 0,1,2,3,4,5, which fit the criteria of

(1) y>2 answer is 3,4 and 5

(2) y<1 answer is 0,-1,-2,-3,-4,-5

etc.

These answers would need to be adjusted if in fact they asked for 'or equal to' in the symbols used.:T

wary

In this question you must choose y only from the numbers, !!-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5}

y > 2
Y< 1
Y> -1
y > -5
y < -5

My interpretation of this is that it is 5 separate questions - i.e. find a set of values that fits EACH of the criteria specified, rather than one set that has to match ALL of criteria specified, which simply wouldn't make sense.

fletch3163

Morning all and thanks for the responses..

wary, they are all different questions actually. Sorry if I didn't make it clear.

timbim_2

aliEnRIK wrote: »

Im wondering if it IS a trick question.
Zero perhaps? Its bigger than -5, but as its zero (nothing at all) then its smaller then -5 (Which is at least something tangible)

Rik, that's complete and utter rubbish. Just think of the number line. It's in the middle, greater than negative numbers. -5 isn't tangible either, if you can't touch none, how can you touch less than none?

aliEnRIK

timbim wrote: »

Rik, that's complete and utter rubbish. Just think of the number line. It's in the middle, greater than negative numbers. -5 isn't tangible either, if you can't touch none, how can you touch less than none?

ok

And YOUR answer is?

(Is zero nothing? zilch? nada? doesnt exist?)

aliEnRIK

my apologies

its 'ALL' of them

nomoneytoday

wary wrote: »

In this question you must choose y only from the numbers, !!-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5}

1 : y > 2
2 : Y< 1
3 : Y> -1
4 : y > -5
5 : y < -5


1 : 3,4,5 (all numbers greater than 2 in the list)
2 : -5, -4, -3, -2, -1, 0 (all numbers less than 1 in the list)
3 : 0, 1, 2, 3, 4, 5 (same theory as Q1)
4 : -4, -3, -2, -1, 0, 1, 2, 3, 4, 5 (same theory as Q2)
5 : nothing as no numbers in list less than -5

That should be in primary school mathematic lessons IMHO

vyseyboy

nomoneytoday wrote: »

wary wrote: »

In this question you must choose y only from the numbers, !!-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5}

1 : y > 2
2 : Y< 1
3 : Y> -1
4 : y > -5
5 : y < -5


1 : 3,4,5 (all numbers greater than 2 in the list)
2 : -5, -4, -3, -2, -1, 0 (all numbers less than 1 in the list)
3 : 0, 1, 2, 3, 4, 5 (same theory as Q1)
4 : -4, -3, -2, -1, 0, 1, 2, 3, 4, 5 (same theory as Q2)
5 : nothing as no numbers in list less than -5

That should be in primary school mathematic lessons IMHO

Agreed, after you clarified that they are all seperate questions / conditions, then these are the correct answers.