1. It would increase your density because water adds more mass.
Do Now: a) If you were measuring the mass of an object and accidentally dripped some water on the triple beam balance and ignored it, what would that do to your density calculation?
It would increase your density because water adds more mass.
b) If an object has a density of 3.0 g/cm3 and a mass of 189 g, what is the volume of the object? (show work)
Volume= Mass/Density m
Volume= 189g/3.0g/cm3 v D
Volume= 63 cm3

2. Which is faster to understand? Why?
Value of Sarah's Car Year Value 2001: $24, : $22, : $19, : $17, : $14, : $10, : $ 5,800

3. Aim: How do we organize data to make it easier to analyze?
Topic: Prologue
Main Idea: Graphing

4. 1) What are the two graphing axes?
A) X-axis: horizontal axis used for the independent variable B) Y-axis: vertical axis used for the dependent variable

5. 2) What is the difference between the independent and dependent variables?
The independent is the cause of change in an experiment and the dependent is what changes when you change the independent.

6. 3) Define direct relationship:
If X increases then Y also increases
The line goes uphill

7. 4) Define inverse relationship:
If X increases then Y decreases
The line goes downhill

8. 5) Draw a line to show graphs with the fastest and slowest rates.
distance
distance
time
time

9. 6) What do straight lines on a graph show?
Constant rate (not speeding up or slowing down)

10. 7) What do curved lines on a graph show?
Increasing or decreasing rate

11. 8) How can we tell quickly which graph is changing at the fastest rate?
The steeper the line (more vertical) the faster the rate.
It is the steepest line a
Which line is faster?
How can you tell? b c

12. 9) Look at these two graphs. Describe the relationship and rate.
inverse
direct
increasing
decreasing

13. 10) How do we calculate how fast something is changing?
change in value
Rate of change= ____________________
time

14. 8 6 . 4 . 2 . 1 2 3 4

15. Summary: On the two graphs below, draw a graph showing a direct relationship with decreasing rate and a graph showing an inverse relationship with increasing rate.