In each of parts (a), (b) and (c), the graph shown with solid lines has equation $$\(y=f(x)\)$$. The graph shown with broken lines is a transformation of $$\(y=\mathrm{f}(x)\)$$. State, in terms of $$\(\mathrm{f}\)$$, the equation of the graph shown with broken lines. ....................................................................................................................................................

Mathematics
IGCSE&ALevel
CAIE
Exam No:9709_s20_qp_13 Year:2020 Question No:3(b)

Answer:

\((y)=2 f(x)\)

Knowledge points:

1.2.5 understand and use the transformations of the graph of and simple combinations of these. (Including use of the terms ‘translation’, ‘reflection’ and ‘stretch’ in describing transformations. Questions may involve algebraic or trigonometric functions, or other graphs with given features.)

Solution:

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