exam Maths Puzzle Numerical Ability

I need help finding the vertex of the parabola. And then must sketch the graph.

The problem is: y=-x^2+2x-6

I am assuming the ^ means sq? I have tried to do y=(x-h)^2+k bu

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exam Other Question

solve the system by substitution

4x-4y=0
y=2x-5
identify the graph x+3y>1