exam Maths Puzzle Numerical Ability

Please help. write the equation of the line given m=2 and b=-1 Thanks for helping

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exam Other Question

Hello,
Please graph the funtion y=f(x) then graph the inverse function y=f^-1(x) on the same grid.

Thank you can you please help me?

2x^3+3x^2-2x-3

i have no idea where to start except that you need two sets of ()