caption: Direct Variation When the line passes through the origin.
exif: {"Image DocumentName": "Direct Variation When the line passes through the origin.", "Image ImageDescription": "When y increases, x increases. Equation: y = kx, where k 0. Constant of variation \u2013 k. Say y varies directly with x", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}