You are Here: Home >< Maths

# FP2 help

Announcements Posted on
Why bother with a post grad? Are they even worth it? Have your say! 26-10-2016
1. can someone explain how the answer here concludes with "hence 2x + y = 5"

I don't see it, I'm fine with every step until that

2. (Original post by marinara pizza)
can someone explain how the answer here concludes with "hence 2x + y = 5"

I don't see it, I'm fine with every step until that
Can you show us the full question?
3. (Original post by Zacken)
Can you show us the full question?
4. (Original post by marinara pizza)
The wording is misleading, it's not "hence", it's just:

You have x and y in terms of u and v and the question gives you so replace x and y with their functions of u and v to get an equation which you can then simplify to show is a circle.

i.e: you're given 2x+y=5 and not derived it. You want to show that 2x+y is transformed to a circle.
5. (Original post by Zacken)
The wording is misleading, it's not "hence", it's just:

You have x and y in terms of u and v and the question gives you so replace x and y with their functions of u and v to get an equation which you can then simplify to show is a circle.

i.e: you're given 2x+y=5 and not derived it. You want to show that 2x+y is transformed to a circle.
oh right i see, thanks !

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: May 20, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

### Who is getting a uni offer this half term?

Find out which unis are hot off the mark here

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read here first

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams