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# Maths question

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1. I thought I was supposed to shift this 2 spaces to the left?
Question 2Bi
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2. (Original post by samantham999)
I thought I was supposed to shift this 2 spaces to the left?
Question 2Bi
you would move it in the y-direction.
upwards

y = f(x) + a translates f(x) 'a' units in the y-direction

if it was y=f(x+a)
y = f(x + a) translates f(x) '-a' units in the x-direction

hope that helps
3. (Original post by maruchan)
you would move it in the y-direction.
upwards

y = f(x) + a translates f(x) 'a' units in the y-direction

if it was y=f(x+a)
y = f(x + a) translates f(x) '-a' units in the x-direction

hope that helps

Did you do anything with the f(x) = (x-1)(x+2) ?

4. (Original post by samantham999)
Did you do anything with the f(x) = (x-1)(x+2) ?

you would sketch the graph of f(x)=(x-1)(x+2)

then shift it 2 units upwards

http://www.bbc.co.uk/schools/gcsebit...onhirev1.shtml
5. (Original post by maruchan)
you would move it in the y-direction.
upwards

y = f(x) + a translates f(x) 'a' units in the y-direction

if it was y=f(x+a)
y = f(x + a) translates f(x) '-a' units in the x-direction

hope that helps

Is this correct:
y=f(x+2) I translate the curve 2 units to the left?
6. (Original post by samantham999)
Is this correct:
y=f(x+2) I translate the curve 2 units to the left?
yes you would move it to the left.and y=f(x-2) to the right
7. (Original post by samantham999)
Is this correct:
y=f(x+2) I translate the curve 2 units to the left?
[*]f(x) + a is f(x) shifted upward a units[*]f(x) – a is f(x) shifted downward a units[*]f(x + a) is f(x) shifted left a units[*]f(xa) is f(x) shifted right a units
Hope that helps
8. (Original post by maruchan)
yes you would move it to the left.and y=f(x-2) to the right
but why am i moving f=(x+2) upwards in 2bi?
9. (Original post by samantham999)
but why am i moving f=(x+2) upwards in 2bi?
2bi you would move to the left

2bii you would move upwards
10. (Original post by samantham999)
but why am i moving f=(x+2) upwards in 2bi?
is this for C1 or for GCSE?
11. (Original post by maruchan)
2bi you would move to the left

2bii you would move upwards
2bi) to -2 n the x axis?
12. (Original post by maruchan)
is this for C1 or for GCSE?
c1
13. (Original post by samantham999)
2bi) to -2 right on the x axis?
yes shift 2 places to the left

f(x + a) is f(x) shifted left a units
14. (Original post by maruchan)
yes shift 2 places to the left

f(x + a) is f(x) shifted left a units
Thats exactly what I did but in the textbook its wrong, I think I am supposed to use something
15. (Original post by samantham999)
c1
watch this video it should help

16. (Original post by samantham999)
Thats exactly what I did but in the textbook its wrong, I think I am supposed to use something
can you show me the textbooks answer
17. (Original post by maruchan)
watch this video it should help

18. (Original post by samantham999)

the textbook may be wrong just follow the video and the rules and then you should get it. you can check your answer on wolphram alpha
19. (Original post by maruchan)
the textbook may be wrong just follow the video and the rules and then you should get it. you can check your answer on wolphram alpha
I will. I know how to do fx notation with exam solutions but this answer in the textbook doesn't even make sense

did you get an A/A* in maths a level?
i'm doing 6 units this year!! tips?
20. (Original post by samantham999)
I will. I know how to do fx notation with exam solutions but this answer in the textbook doesn't even make sense

did you get an A/A* in maths a level?
i'm doing 6 units this year!! tips?
The textbook is right.

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