x Turn on thread page Beta
 You are Here: Home >< Maths

# Further Equations Homework- Help? watch

1. Hello, i need help with my maths homework and i'm hoping that somebody would be of assistance to me.

Okay the 1st question is:

Calculate the coordinates of the points of intersection of the graphs which have equations
x+ 2y = 5 and xy = 3

I got (-1,-3) and (6,1/2) as my answers. Is this correct?

The 2nd question is:
Solve the simultaneous equations 3x + y =7, x(2x+ 3y) = 0.

For some reason i can't do that question, i need help :P
Thanks.
2. (Original post by Cainyy)
Hello, i need help with my maths homework and i'm hoping that somebody would be of assistance to me.

Okay the 1st question is:

Calculate the coordinates of the points of intersection of the graphs which have equations
x+ 2y = 5 and xy = 3

I got (-1,-3) and (6,1/2) as my answers. Is this correct?

The 2nd question is:
Solve the simultaneous equations 3x + y =7, x(2x+ 3y) = 0.

For some reason i can't do that question, i need help :P
Thanks.
You can check whether your answers for q1 are correct by putting them in back to the two equations - you'll notice that both sets of coordinates satisfy xy=3 but neither satisfy x+2y = 5.

For q2, make either x or y the subject of one equation and work from there. (3x + y = 7) sounds easier to work with.

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:
Updated: October 21, 2015
Today on TSR

### How much will your degree earn you?

Find out where yours ranks...

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