What equation describes the possible locations of the epicentre of… What equation describes the possible locations of the epicentre of the earthquake, if (0, 0) represents the location of the seismograph? A. Why does the equation of a circle that has its centre at the origin and a radius of 30describes all the possible locations of the epicentre. B. Sketch this circle on a grid. Then identify the coordinates of all its intercepts. C. Show that (24, 18), (-24, 18), (24,-18), and (-24, -18) are possible locations of the epicentre, usinga. the graphb. the distance formula D. Let point A(x, y) be any possible location of the epicentre. What is the length of OA? E. Use the distance formula to write an expression for the length of OA. F. Use the results for parts D and E to write an equation for the circle that is centred at the origin. Write the equation in a form that does not contain a square root. Why does the equation describes all the possible locations of the epicentre.Math Linear Algebra MPM 2D1
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