ࡱ > 5@ M bjbj22 "" X X M $ ( " \ E G G G G G G $ R V k 2 2 2 k 2 E 2 E $ & PƙEG < " E 0 , Z ^ Z $ Z X 2 2 2 2 2 2 2 k k EMBED Excel.Sheet.8 Activity: At Your Seat: Use STAT PLOT to graph (x, f(x)). Use [-3, 7, 1, -10, 550, 50] for your WINDOW. For the values of a, b, and c, use 4, 2, and 10. What do you notice about the GRAPH? Use TRACE to get to the y-intercept. What are the coordinates of the y-intercept? Where is the y-intercept in the SPREADSHEET? TRACE to get to the next point. What are the coordinates of that point? Keep using TRACE to view the coordinates of each point. What patterns do you notice? What column(s) in the SPREADSHEET might tell you that the numbers are being multiplied by the same amount? What number is the multiplier? Which column(s) in the SPREADSHEET does not seem to show any pattern at all? Look at (x, f(x)) in the SPREADSHHET. Develop a relationship that exists between the values in x and the values in f(x). HINT: what number * another number ^ 3 = 32 what number * another number ^ 1 = 8 Check to see if you are correct by going to Y = and typing your expression like this: what number * another number ^x EMBED Excel.Sheet.8 Activity: At Your Computer: Double-click on the SPREADSHEET, and change the values ONE AT A TIME for a, b, and c to 2, 10, and 3. What changes took place in the SPREADSHEET? Use STAT PLOT to graph (x, f(x)). Use [-3, 7, 1, 0, 20000, 2000] for your WINDOW. What do you notice about the GRAPH? Use TRACE to get to the y-intercept. What are the coordinates of the y-intercept in the GRAPH? Where is the y-intercept in the SPREADSHEET? TRACE to get to the next point. What are the coordinates of that point? Keep using TRACE to view the coordinates of each point. What patterns do you notice? What column(s) in the SPREADSHEET might tell you that the numbers are being multiplied by the same number? What number is the multiplier? What column(s) in the SPREADSHEET does not seem to show any pattern at all? Look at (x, f(x)) in the SPREADSHEET. Develop a relationship that exists between the values in x and the values in f(x). HINT: what number * another number ^ 2 = 200 what number * another number ^ 3 = 2000 Check to see if you are correct by going into Y = and typing in your expression like this: what number * another number ^x Feel free at this point to change the values of a, b, and c to whatever you like. Observe the effects of any changes you make. % & 3 4 5 9 B L U s ~ 0 R ] ^ _ ` e ΄μx h0{ hJ^ 5hJ^ h