caption: Rate of change of the line
exif: {"Image DocumentName": "Rate of change of the line", "Image ImageDescription": "Slope (1.3) Rise. Run. Rate of change of the line. How much the output variable changes for a unit change in the input variable.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}