# How do you find the point of intersection for # x+y= -3# and #x+y=3#?

##### 1 Answer

Jul 8, 2015

From

#### Explanation:

Now substitute that in the other equation:

This cannot be. Clearly there is no intersection.

We could have seen this, because (as we have seen before), the second equation translates to a slope-intercept form of

While the first will translate to:

Same slope (

Here is the graph for

graph{-x+3 [-10, 10, -5, 5]}