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Textbook @ Videos [+] 0/1 pt 9 100 99 @ D Question 1 dx dy Find at x = 4 if y = - 2x2- 3 and = 1. dt dt da dt Question Help: Video Message instructor Submit Question Jump to Answer Question 2 0/1 pt 9 100 99 @ Det dy dx Find atx = - 1ify = - 4x2+ 4 and dt dt = 1. dy dt Question Help: Video Message instructor Submit Question Jump to