Worksheet #1 - Graphing with the Calculator
January 9, 2006
During the semester, you will be expected to be able to use your calculator in
numerous ways. The calculator will be one of the tools that you will be using to
solve many of the problems in this course. It is very important that you start now
in learning the different features of your calculator.
You will also be expected to answer questions in this course with complete
sentences. Answers need not be a novel, but a good complete sentence or two that
answers the question.
Work sheets and homework can be done in groups. Having the right answers
on your paper is not important - knowing how to solve problems correctly is.
Problem #1 - Buttons
•“Y=” This screen lets you enter different functions to be graphed. Enter
x2−12x+ 20 for Y1. What button did you have to use the variable X?
•“Window” This screen lets you enter the window that will be displayed.
If you don’t get the window correct, you will not see you graph. Enter
Xmin =−5, X max = 5, Y min = 0, and Y max = 40.
•“Graph” This button will draw the graph of the functions that you have
entered. Again, your viewing window might need to be altered.
•The graph of the function y=x2−12x+ 20 is a parabola. Change your
viewing window so you can tell the graph is a parabola.
•What are the new values of Xmin, X max, Y min and Y max that you are
using?
