Hello I have answered these questions but I'm unsure about them could you double check them for me? Thanks

4.5 points 16 4.5 points The graph of f (a ) is shown below. 15+ Determine the extreme value on the interval (-1, 0) for the function shown. f (z) = -26 -323 +x+1 10- O 0.776 1.221 O 2.122 O 0.779 For which of the following intervals is the graph of f(a) negative? 1. (-00, -10) I1. (-10, 0) III. (0, 5) IV. (5, 00) | and Ill O II and Ill 20 4.5 points II and IV Which of the following models could be used to find two numbers whose sum is 256, I and IV but whose product is a maximum? O y= 116 -x O f (x) = (2 -256) O f (x) = xy Of(x) = 2 (256 - x) 21 5 points A rectangular swimming pool is to be built with an area of 1, 800 square feet. The owner wants decks along either side of the pool that are 5 feet wide, and decks at each of the two ends 10 feet wide. Find the dimensions of the smallest piece of property on which the pool can be built. Edit View Insert Format Tools Table 12pt Paragraph BIUAL T 2 V x= 60(length) y= 30 (width) p > 22 5 points Write a rational inequality with solutions (-2, -1) U (1, co). Edit View Insert Format Tools Table 12pt Paragraph BIUA LV TV : x^2+3x+2/1-x