I need help, please!

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Use the multiplier method to incrases £258 by 43%

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

What is the multiple zero and multiplicity of f(x) = (x ? 3)(x ? 3)(x + 5)? multiple zero is 3; multiplicity is 2 multiple zero is 5; multiplicity is 1 multiple zero is ? 5; multiplicity is 1 multiple zero is ? 3; multiplicity is 2