exam Maths Puzzle Numerical Ability

identify the center of the circle (x+2)^2+(y-1)^2=9 I got -1,1?

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exam Other Question

Sketch the graph of y=tan(x-pi) without using a calculator. What is the period and where are the asymtopes? In the equation 2xy= (Ay-7)/P, how do you solve for y?