exam Maths Puzzle Numerical Ability

Hello I am having problems and any help would be appreciated greatly...

Page 457
Number 40

f(x)=3-5x
(a) f(-1) (b) f(1) (c) f(2)

Given the following functions, find the indicated values.

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exam Other Question

Identify the axis of symmetry, create a suitable table of values, then sketch the graph (including the axis of symmetry).

y = �x^2 + 3x � 3. Please assist me with my problem, also please show the table and the graph.

Thanks FROM A SQUARE PIECE OF CARDBOARD WITH WIDTH x INCHES, A SQUARE OF WIDTH x-3 INCHES IS REMOVED FROM THE CENTER. WHAT IS THE AREA OF THE REMAINING PIECE AS A FUNCTION OF x.