Graph Transformations 4.5 / 5 based on 2 ratings ? MathematicsGraphs and transformationsASOCR Created by: HeatherCreated on: 25-03-13 16:38 What direction does y = f(x) + a do to a graph? Moves it in the postive y direction 1 of 11 What direction does y = f(x) - a do to a graph? Moves it in the negative y direction 2 of 11 What direction does y = f(x + a) do to a graph? Moves it in the negative x direction 3 of 11 What direction does y = f(x - a) do to a graph? Moves it in the postive x direction 4 of 11 What does multiplying the whole function do? (eg. y = 2x (x - 7) ) Stretches/squeezes/reflects the graph VERTICALLY. 5 of 11 when y = af (x) what happens when a is negative? Reflects in the x axis 6 of 11 when y = af (x) what happens when a is smaller than 0, but not negative? ( ie, 1/3 ) The graph is squashed vertically 7 of 11 when y = af (x) if a > 1 or a<-1 what happens to the graph? It is streched vertically 8 of 11 when y = f (ax) what happens when a is negative? reflected in the y axis 9 of 11 when y = f (ax) what happens when a>1 or a<-1 squashes horizonally 10 of 11 when y = f (ax) what happens when -1< a <1 (ie fractions) stretched horizonally 11 of 11
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