exam Maths Puzzle Numerical Ability

The graph of a quadratic function f is the graph of y=-2x^2 translated 4 units to the left and 6 units down. What is the equation of function f?

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exam Other Question

log4x = 0.5

Please solve with steps

Thank:) A plane flies 500 miles with the wind and 340 miles against the wind in the same length of time. If the speed of the wind is 28mph, what is the speed of the plane in still air?