book Maths Puzzle Numerical Ability

Please help, we are lost again, and specially on doing the graph. There is no book for this question, it is from the teacher. Thank you in advance for any and all help.

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book Other Question

True or false: The function "f(x) = 3x" grows three times faster than the function "g(x) = x". Explain Hi,
Please solve the equation:

{{{3^x - 3(1 - 1/3^x) = 1}}}

I have tried multiplying out the bracket but still can't find the solution.
Please help.