Give the coordinates of the 3 points where the lines intersect

They intersect at (-6,-1) and (-4,-1), but there is no 3rd coordinate on the graph. To intersect means for 1 line to cross another line. The purple line intersects with the green line at (-6,-1), and the red line intersects with the green line at (-4,-1). 

It’s 24.6 after you round to the nearest tenths the answer should be 25.0