book Maths Puzzle Numerical Ability

how do I determine the x and y intercepts of the graph of x=3y^2-9 ??

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book Other Question

This is my promblem. Please help!

Due to road construction delays the Swansons averaged only 36 mph on their trip to their vacation home last summer. This summer they averaged Graph the exponential function, f(x)=3^x-2 and the logrithmic function g(x)=log3(x-2) on the same graph.