CSC 161 Fall 2020 - Homework 6 (10 pts. total)
Assigned Tue Oct 20, due Tue Oct 27
Answer the following questions about the TI-84 calculator in full sentences in a single Microsoft Word file named hw6-LastName.doc (where LastName is replaced by
your last name):
[ 1 pt. ] 1. Describe a method to solve #24 from the January 2019 Algebra 2 Regents using the TI-84. State the answer.
[ 1 pt. ] 2. Describe a method to solve the system {2x + 5y = 17, 3x + 2y = 9} on the TI-84. State the solution.
[2 pts.] 3. Describe, in detail, how you would teach an Algebra 1 class to graph a piecewise function & why you would teach it using that method.
[ 1 pt. ] 4. Describe how to solve #12 from the January 2019 Algebra 1 Regents using Regression on the TI-84.
[ 1 pt. ] 5. Use the TI-84 to answer #1 from the January 2019 Algebra 1 Regents. Explain how you found your answer.
[ 1 pt. ] 6. Use the TI-84 to find the equation of the parabola that passes through the points (1,8), (4,-1), and (5,0). Explain how you found your answer.
[2 pts.] 7. Redo question 2 from HW4 with the TI-84. Explain what you did to find each answer.
[ 1 pt. ] 8. Use the TI-84 to solve #31 from the January 2019 Algebra 1 Regents.
[2 pts.] 7. Fifteen high school students complete a preparation program for taking the SAT test. Here are the SAT scores from the 15 students who completed the SAT prep program: 434 694 457 534 720 400 484 478 610 641 425 636 454 514 370. Use the TI-84 to conduct a ZTest to determine if it can be shown that μ > 500 with α = .05. Assume it is known that σ = 100. Explain what prints out on the TI-84 when ZTest is run.
[ 1 pt. ] 8. Calculate the Zinterval for the sample given in question 7 above. Still assume σ = 100.
Last Modified: 10/22/20