caption: In order to tell if a graph is proportional the line must go
exif: {"Image DocumentName": "In order to tell if a graph is proportional the line must go", "Image ImageDescription": "through the origin and be a straight line. Straight line Yes. Passes through (0,0) No. This is NOT a proportional relationship!", "Image XResolution": "200", "Image YResolution": "200", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}