exam Maths Puzzle Numerical Ability

given f(x)=2x^2-3x+4

where A=matrix (-1 2)
(0 3)
find P(A)

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Could someone please help me with this problem?
I need to solve the inequality and state the solution set:
x/x-3<=-8/x-6 (sign is less than or equal to) Thank you in advance!
the graph of f(x)=2(x-1)^2+3 has the following characteristics.

a)vertex: (1,3) and opens downwards
b)vertex: (1,3) and doesn't cross the x axis
c)vertex: (1,3) and has two y