book Maths Puzzle Numerical Ability

Can anyone show me how to work this problem and then what the graph would look like...thanks

f(x)=x^2+2

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book Other Question

I have another piecewise defined function to graph:
f(x) = {x^2 if |x| <=1}
{1 if |x| >1}

If |x| being less than 1 I should get all positive values on the graph, right?

Thank you very much! solve y
2log(3,y) + log(3,0.1) = log(3,5) + log(3,2)