What order do you start with for graph transformations (alevel maths)
I was doing a past paper and one of the questions require me to draw the graph
ln(2x-5)
I thought you apply the stretch (so x1/2 first) and then add 5.
So I drew the x-intercept to be at 5.5
However I looked at desmos and their x intercept was at 3.
Clearly they added 5 and then divided by 2
What order do I use for transformations?
ln(2x-5)
I thought you apply the stretch (so x1/2 first) and then add 5.
So I drew the x-intercept to be at 5.5
However I looked at desmos and their x intercept was at 3.
Clearly they added 5 and then divided by 2
What order do I use for transformations?
Original post by harlz_chalamet
I was doing a past paper and one of the questions require me to draw the graph
ln(2x-5)
I thought you apply the stretch (so x1/2 first) and then add 5.
So I drew the x-intercept to be at 5.5
However I looked at desmos and their x intercept was at 3.
Clearly they added 5 and then divided by 2
What order do I use for transformations?
ln(2x-5)
I thought you apply the stretch (so x1/2 first) and then add 5.
So I drew the x-intercept to be at 5.5
However I looked at desmos and their x intercept was at 3.
Clearly they added 5 and then divided by 2
What order do I use for transformations?
Its usually easier to view it in terms of
z = 2x-5
so
x = (z+5)/2
so add 5 then divide by 2 or
x = z/2 + 5/2
so divide by 2 then add 5/2. Either set of transformations is valid.
Quick Reply
Related discussions
- maths question help
- When transforming a graph, does it matter which order you list the transformations?
- Trigonometric identities
- Differentiation
- Describing transformations of functions
- Computers science which subjects to do?
- A level Maths OCR question help
- Casio fx-cg50
- 2022 Edexcel Maths GCSE (Higher) Checklist
- math help alevel trigonometry
- Should I do A level econ?
- Maths question
- Need help drawing this graph-AL Maths
- Wjec alevel chemistry analysis
- maths students - help me
- Grow your Grades blog 23/24!
- Vibrations study help please
- Edexcel alevel maths question
- KPMG Audit Apprenticeship Online Assessment
- Bio alevel
Latest
Trending
Last reply 4 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 4 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
