Try another version of this question Which rectangular equation is equivalent to the cylidrical equation `z = -9r^2`? `5x-2y+z = 0` `z = -9(x^2+y^2)` `z = -9y` `10x+y = z` Box 1: Select the best answer `z = -9(x^2+y^2)`
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Box 1: Select the best answer