exam Maths Puzzle Numerical Ability

graph all on a graph;
f(x)=log3 x+2
f(x)=log3 (x+2)
f(x)=log3 (x-2)
f(x)=log3 x

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exam Other Question

Is the given number a solution of the equation?

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2(x - 2) - 5x = 5(2 - x); 7

6a + 3 = 3(3a - 2); 4 how do you find the absolute value of a fraction?