- #1

- 2

- 0

## Homework Statement

Use the data table of displacement time data to get a line of best fit using your Ti-83 calculator. Once you have the equation, graph it so that you can answer the questions 1-5 that follow. Assume that the data below is for an object that is launched vertically upwards.

Time (sec) Displacment (m)

0 9.3

.5 15.075

1.0 18.8

1.5 20.475

2.0 20.1

*Using the information above, calculate the average speed for the object from 0.75 sec to 2.9 sec.*

## Homework Equations

I've tried using the distance divided by time, but that hasn't worked, so I think the equation is actually where my problem is. The one I've tried mainly is average speed=change in distance/change in time

## The Attempt at a Solution

Time Displacement

.75 17.193

2.9 14.259

AS=(14.259-17.193)/(2.9-.75)

AS= -1.36

Which isn't right.

Thanks!