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GRAPHS NAME Directly Proportional SHAPE Line EQUATION GRAPHS STRATEGY NAME y = mx + b Calculate the slope and look at the intercept. Directly Proportional y=k/x Multiply x and y. The average = k. Inversely Proportional y = k x2 Graph y vs x2 Slope = k Quadratic Hyperbola Inversely Proportional Directly Proportional SHAPE Line x Graph y2 vs x sqrt of slope = k Square Root EQUATION STRATEGY NAME y = mx + b Calculate the slope and look at the intercept. Directly Proportional y=k/x Multiply x and y. The average = k. Inversely Proportional y = k x2 Graph y vs x2 Slope = k Quadratic Multiply x and y. The average = k. y = k x2 Graph y vs x2 Slope = k y=k x Graph y 2 vs x sqrt of slope = k SHAPE Line EQUATION STRATEGY y = mx + b Calculate the slope and look at the intercept. y=k/x Multiply x and y. The average = k. y = k x2 Graph y vs x2 Slope = k Parabola Hill Square Root y=k/x Hyperbola Parabola Quadratic Calculate the slope and look at the intercept. GRAPHS Hyperbola Inversely Proportional y = mx + b Hill y=k GRAPHS NAME STRATEGY Parabola Hill Square Root Line EQUATION Hyperbola Parabola Quadratic SHAPE Hill y=k x Graph y 2 vs x sqrt of slope = k Square Root y=k x Graph y2 vs x sqrt of slope = k
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