Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Year 12s: what will be the first way you research your future options? >>

Help with AQA core 2 logs

So I have been doing a past paper for core 2 and have come upon a question which I don't understand, I've had a look at the mark scheme but it isn't helping much so I was hoping somebody could explain how to do the last two parts, as I'm ok on the first two its just the last two which are a problem.
stupid maths question.jpg

stupid maths question.jpg

Thanks

:smile:

Original post by Zozzy

So I have been doing a past paper for core 2 and have come upon a question which I don't understand, I've had a look at the mark scheme but it isn't helping much so I was hoping somebody could explain how to do the last two parts, as I'm ok on the first two its just the last two which are a problem.
stupid maths question.jpg

stupid maths question.jpg

Thanks

:smile:

The first parts of the questions help you.
The log has been taken from a product to a sum. Just work backwards and think f(ax)...

Original post by Zozzy

...

Given

y = f(x)

, a stretch parallel to

y = 0

of scale factor

\displaystyle \frac {1} {a}

is

y = f(ax)

Solve for

x

and find corresponding

y

. Then

\displaystyle m = \frac {y - y_0} {x - x_0}

Hope this helps. :smile:

:smile:

(edited 9 years ago)

Quick Reply

Latest

Trending

Trending

Articles for you

A guide to free resources for GCSE and A-level exam revision

A guide to free resources for GCSE and A-level exam revision

What is an LLM and how could it benefit your career?

What is an LLM and how could it benefit your career?

Powerful questions business students forget to ask their career advisers

Powerful questions business students forget to ask their career advisers

Why I chose a law degree and what studying law was like

Why I chose a law degree and what studying law was like