exam Maths Puzzle Numerical Ability

Solve equation:

a^3=a

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exam Other Question

I need help graphing this equation. It is too complicated for me. Could you explain how to graph it and explain why it is not necessary to plot points to graph when using y = a (x Hi please help me with this.I am trying really hard but cant help myself.
The table shows the minimum volume of water needed to fight a typical fire in rooms of various sizes. So