l Direct us Inverse relationships Direct relationship As x increases, y increases The graph of the model rises from left to right The slope of the linear model is positive Inverse relationship As x increases, y decreases The graph of the model falls from left to right The slope of the linear model is negative o 2002 The Wadsworth GroupDirect vs Inverse Relationships • Direct relationship: – As x increases, y increases. – The graph of the model rises from left to right. – The slope of the linear model is positive. • Inverse relationship: – As x increases, y decreases. – The graph of the model falls from left to right. – The slope of the linear model is negative. © 2002 The Wadsworth Group