Answer
20 months
Work Step by Step
Step 1:
Enter the equation $y=560x$ into a graphing calculator.
$\circ$ Press "y=". The cursor appears next to $Y_1$.
$\circ$ Write 560 and then press "x,t,$\Theta$,n" to enter $y=560x$.
Step 2:
Access the table setup feature.
$\circ$ Press "2nd" "window".
$\circ$ TblStart represents the starting value in the table. Enter 15 for TblStart.
$\circ$ $\triangle$ Tbl represents the change in the value of x as you go from row to row. Enter 1 for $\triangle$ Tbl.
Step 3:
$\circ$ Press "2nd" "graph". Use $\triangledown$ to scroll trough the table until you find the x-value for which y=11,200. This x-value is 20. Therefore, it takes 20 months to accumulate 11.200 t of waste in the landfill.
