You are Here: Home >< Maths

# Maths question help plz watch

1. Hi, does anyone know how to find b and c in the equation y=x^2+bx+c if i know it intersects the points (9,6) and (8,-7)?
2. anyone?
anyone?
Yes put in the x and y coordinate in the equation, you should get two simultaneous equitation, then rearrange one and substitute it in the other to find the unknown values.
4. you have been given co ordinates, so for the first one (2,3) means that 2 is x and 3 is y. substitute the numbers into the equation and then work out the other letters. same with the other co ordinates
i'm not the best at maths, so don't take my word for it but i think that's what you do
Yes put in the x and y coordinate in the equation, you should get two simultaneous equitation, then rearrange one and substitute it in the other to find the unknown values.
ok thank you so much

### Related university courses

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: November 9, 2017
Today on TSR

### He lied about his age

Thought he was 19... really he's 14

### University open days

Wed, 25 Jul '18
2. University of Buckingham
Wed, 25 Jul '18
3. Bournemouth University
Wed, 1 Aug '18
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