Cambridge Additional Mathematics

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60 Functions (Chapter 2)

Review set 2A

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1 Determine whether the following relations are functions:

ab

cd

2 Suppose f(x)=ax+b whereaandbare constants.

If f(1) = 7 and f(3) =¡ 5 , findaandb.

3 Solve forx:

a jx¡ 5 j=7 b j 2 x+1j=jx¡ 4 j

4 If g(x)=x^2 ¡ 3 x, find in simplest form:

a g(¡2) b g(x+1)

5 For each of the following functions:

i find the domain and range ii determine whether the function is one-one.

abc

6 Draw the graph of y=jf(x)j for:

ab

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Additional Mathematics
Y:\HAESE\CAM4037\CamAdd_02\060CamAdd_02.cdr Thursday, 3 April 2014 4:10:02 PM BRIAN