Part A Your supervisor has finally given you the equation! It's 1 = saxy- Use your spreadsheet software and copy and paste the entire worksheet you previously completed. (Make sure you keep a copy of the items completed in Steps 1 and 2). Using the new copy, complete the following: 1. Use spreadsheet software and your previous setup to estimate the area below the curve for the equation y = n't between 1 and 11 using the following criteria: Left endpoints, n = 5 Right endpoints, n = 5 Left endpoints, n = 20 Right endpoints, n = 20 . Midpoint, n = 20 2. Use your graphing calculator to see the graph of y = at where 1 sx s 11. 2.6 1.0 B 10 Insert a screen capture of the spreadsheet with data for the new equation. BIUXX, 15px Characters used: 0 / 15000 Part B Is this function increasing or decreasing? Based on this answer, can you determine whether there will be an underestimate or overestimate using the left endpoint? BIUXX , 15px Characters used: 0 /15000Part C Evaluate 145 "2 dr . How does the value of the integral compare to your estimates? Explain. B IY XX 15px Characters used: 0 / 15000 Part D If x is measured in yards and your boss wants a 2" thickness of mulch, how many cubic yards should he order? B I YXX , 15px A 5 Characters used: 0 / 15000Guideline 1. Start a blank spreadsheet (Excel, Googledocs, etc) Define a field in the spreadsheet where you're going to put the value for a, b, n and delta x. It's best to label these. You can start with something like this: A B a= 2 b= 3 n= A delta x= 2. 3. Fill in the values for a, b and n by placing the numbers in cells B1, B2 and B3, respectively. 4. Create a formula that will calculate Ax in cell B4. 5. Label cells D1 and E1 as x sub i and f(x sub i), respectively. It should look like this: D E x sub i f(x subi) 6. Fill in the correct values for xi starting at cell D2. Remember, you're using the left endpoints but later you'll be using the right endpoints. (Note: If you'd like to reference the cell that contains Ax, simply type a dollar sign before the column letter and another dollar symbol before the row number. This will allow you to copy and paste the formula to other cells, but the formula will always use cell B4. Here's an example: | $B$4) 7. Create a formula that will calculate f(xi) in cell E2. (Note: If you'd like to reference the cell that contains Ax, simply type a dollar sign before the column letter and another dollar symbol before the row number. This will allow you to copy and paste the formula to other cells, but the formula will always use cell B4. Here's an example: $B$4) 8. Copy the formula in order to calculate the rest of the values for f(xi). 9. Label cell F1 as "Area of rectangles from left". In cell F2, create a formula that will calculate the area of a single strip or rectangle. Copy the formula to other cells in order to find the area of each rectangle. 10. Sum the areas found in the previous step to get your estimated area using endpoints from the left. 11. Label cell G1 as "Area of rectangles from right".12. In cell G2, create a formula that will calculate the area of a single strip or rectangle. Copy the formula to other cells in order to find the area of each rectangle. 13. Sum the areas found in the previous step to get your estimated area using endpoints from the right