Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - Concept Byte - Using Tables to Solve Equations - Page 59: 1


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.
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