You are Here: Home >< Maths

1. question:
by eliminating x and y from these equations

where a\neq 0 , obtain a relation between m and a. Given that a is real, determine the ranges of values of a for which m is real.

I managed to get
but the question as to give the ranges of a.
from what i learn for instance if you can be asked to find the range of values of x.
but for this question i got .
As a result, it is difficult for me to find the range of values of a as a is not where m is.
How do i rearrange it to have m as the dependent variable in order to find the range of a

thank you
2. Rearrange for m, you will need to solve a quadratic in m, but be careful not to get rid of half of the curve when you do.

## 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: September 19, 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

### Trump fails the psychopath test

...or passed with flying colours?

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams