CSC 161 Fall 2020 - Homework 5 (10 pts. total)
Assigned Thurs Oct 8, due Thurs Oct 15 (extended to Fri Oct 16)
Answer the following questions about the TI-84 calculator in full sentences in a single Microsoft Word file named hw5-LastName.doc (where LastName is replaced by
your last name):
[ 1 pt. ] 1. When set to 3 (fixed) instead of FLOAT (but still in NORMAL mode), how would the result of 3.12345 + 2.67809 display? Explain why.
[ 1 pt. ] 2. For what actual arguments would ipart and int return different answers? Explain why.
[ 2 pts. ] 3. Name the two split-screen modes on the TI-84 & describe how they could be used in a math lesson.
[ 2 pts. ] 4. Describe how to use Equation Solver to find both solutions of the equation x^2 + 4x - 21 = 0.
[ 2 pts. ] 5. Based on the Extended Order Of Operations in the notes, what sequence of steps does the TI-84 use to evaluate the expression (x+5)(x>1 and x<3) + (x-5)(x>3) when x = 4?
[ 2 pts. ] 6. Describe, in detail, how you would teach an Algebra 1 class to graph a piecewise function & why you would teach it using that method.
[ 2 pts. ] 7. Question 7
Last Modified: 10/13/20