7. Here you may use Desmos or another graphing utility to graph the following functions: 1 y = x, r= y², y =r, x = y°, y? = x², y= y = VI, (r-3)² + (y+2)? = 25 %3D a). Which of these relations are functions? b). For those that are not a function, what is restricting the relation from being one?

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