# How do you find the equations of two lines with a point of intersection at (2 , -3) and one of the lines passes through the origin of the system of axes?

##### 1 Answer

Feb 5, 2015

We have one line with two points

The equation goes

Fill in what you know to find

So the equation of the first line is:

The second line needs more data.

**If** we know it is **perpendicular** to the first, then

Fill in what you know to find

So that equation will be: