## Distance between two points

Algebra, Functions and equations, Circular functions and trigonometry, Vectors, Statistics and probability, Calculus. IB Maths SL Revision Notes

### Distance between two points

IB Mathematics SL, Coordinate geometry, Distance between two points

How can we find the distance between two points B(1,6) and C(-4,7) ?

Thanks
Jane

Posts: 0
Joined: Tue Mar 19, 2013 8:47 pm

### Re: Distance between two points

IB Math SL, Coordinate geometry, Distance Formula

The distance between two points $B(x_{1}, y_{1})$ and $C(x_{2}, y_{2})$ is given by the following formula:

$d_{BC}= \sqrt{( x_{2}- x_{1})^2+( y_{2}- y_{1})^2}$

Applying the distance formula in our case we have

$d_{BC}= \sqrt{( -4- 1)^2+( 7-6)^2}=\sqrt{25+1}=\sqrt{26}$

Hope these help!
nicole

Posts: 0
Joined: Mon Jan 28, 2013 8:10 pm

### Re: Distance between two points

Thanks Nicole!
Jane

Posts: 0
Joined: Tue Mar 19, 2013 8:47 pm