An even function must always have what characteristic? a) rotation symmetry about the origin b) be a polynomial with even exponents on x c) a line of symmetry on the x-axis d) a line of symmetry on the y-axis

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Which of the following are parts of a sphere

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15