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15 November, 2013 Homework 25 Math 1100 Name: key between x = 0 and x 4. 1. (5 points) Estimate the area under the graph of y = Use four rectangles and evaluate at left endpoints. Draw your rectangles on the picture below. — E4Z E j4 I4 l•i-12 —q -z q Li ‘-1 PI’A: (O,o) p 13: (i, 3/) PfC (at) p-D: (3,) between x = 0 and = 4. 2. (5 points) Estimate the area under the graph of y = Use four rectangles and evaluate at right endpoints. Draw your rectangles on the picture below. — ‘I__ —‘A ,4 1 s________ P- lQ i4:(1,%) 3: (z..,t) p4 C; (3 P)- D (9 Hi + 1?- 3. (16 points) The following functions all form simple geometric shapes. Sketch each func tion and use your knowledge of geometry to find the area under each in the range indicated (not an approximation). (a) g = 3 from r 0 to x = t. (Your answer will be a function of t.) //// 0 (b) y = 2x from x = 0 to c = t. (Your answer will be a function of t.) 2.. (c) y = r + 1 from x = 0 to x (&L = t. (Your answer will be a function of t.) A 4: -k “ .L {.1 1 —1 (d) What pattern do you notice in your answers above? cu fv9(QI e Lb