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(1 point) 18 28 -1 (Note: This problem has several parts. The latter parts will not appear until after the earlier parts are completed correctly.) This is similar to a problem in the textbook. A graph of f is shown above. Estimate the following integral. 18 f(x)dx Notice the integral points x-values y-values Estimate the integral Sf(x)dx x-values If we use these integral points to divide the region into five intervals, what are the x-values (including the endpoints)? x1 0 1 X4= 16 18 y-values If we use these integral points to divide the region into five intervals, what are the y-values (including the endpoints)? y 0 y2 = 1 y3 =2 y4= y5 =4 For the last value, y6, your answer need only be an estimate within 0.25 of the actual value. y6 4.25 (1 point)- This is similar to a problem in the textbook. Use the grid to estimate the area of the region bounded by the curve shown in the figure, the horizontal axis, and the vertical lines x = -2 and x = 2. Answer: square units. 1.0 6 6 -6 (1 point) 10 20 This is similar to a problem in the textbook. A graph off is shown above. Estimate the following integral. 18 f(x)dx Answer: (1 point) This is similar to a problem in the textbook. A graph of f(x) is shown above. Estimate the following integral. f(x)dx Answer: 110 -1 8

Answer 1

1). since gaph shouses itis parsabala taith vertexat ,2) 2 1 40aV4. goaph2= sO 18 C18 1%2 7 3 50.81 045) at (2,2) (2.5)9 (i2)7 -0,4 4-4.5)(-6 -64t7.2 2 A= 2 22 d Tr 6 (16)10 JEI= 2 L1.66unit

at (41) Toa) f(x) dz po 2. 18 2 3 X 2 18/-(2)3/2 24.51 (4,6 A-47- kaly-6) at (o, 2) 16 40 (-4) to,21 (8,2)* (1-42-aly-6) (7-4t6- 4 dz 6-(7-)da6x6-(- |2 30 36-6 36-8+ 64 | 2