Texas Instruments TI-83-Plus Guide Book

Chapter 3: Linear Functions Name
Section 3: Slope as Rate of Change Date
Topics in Algebra 1 © 2001 Texas Instruments Student Worksheet 3-21
³
Try-It!
é
on Your TI
.
83 Plus
See the section on
Slope Using Coordinates
to find out how to use your calculator to find the
slope of a line containing two given points. Review the keystrokes. Use these keystrokes to
compute the rate of change for each pair of data points given. Include the correct units with your
answer.
1.
x (seconds) y (feet)
2.
x (hour) y (phone calls)
10 6.72 2 18
20 8.05 4 25
Rate of Change _______________________ Rate of Change _____________________
3. A space shuttle has an average velocity of 25,405 ft/sec. The velocity of a car on a highway
can be 60 mi/hr. To find out how many times faster the space shuttle travels compared to the
car, you must convert the speed of the space shuttle to miles per hour. First, look at the
conversion by hand, and then do it on the calculator. When set to
Float
, the calculator shows
the answer to five decimal places.
25,405
ft
sec
Q
60 sec
1 min
Q
60 min
1 hr
Q
1 mi
5280 ft
= 17321.59091
mi
hr
To Do This Press Display
(TI
.
83 Plus shown)
1. If necessary, exit the Topics in
Algebra 1 application and clear the
Home screen.
y
l
á
EXIT
â
:
2. Calculate 25,405
Q
60
Q
60
à
5,280.
25405
¯
60
¯
60
¥
5280
Í
3. How many times faster does the space shuttle travel compared to the car? ____________
Additional Problems
Try these by hand, and show your work below. Then check the answers on your calculator.
5280 feet = 1 mile 1000 meters = 1 kilometer
60 seconds = 1 minute 60 minutes = 1 hour
1. 55 miles/hour
"
feet/second
2. 35 meters/second
"
kilometers/hour

Texas Instruments TI-83-Plus Specifications

General

Brand	Texas Instruments
Model	TI-83-Plus
Category	Calculator
Language	English