The graph of y = x - ln x is concave up on which interval? concave up on (-∞,0) concave up (-00,00) never concave up concave up on (0,∞) Find the critical points for y given that y' = 2xx(x ln 2 + 2). The domain of y is (-∞, ∞0). ○ x = - ln 2, x = 0 Ох In 2' 1 x = = 0 x - 0 2 x In 2' x = 0

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