1. Interpreting Graphs and data

2. Why are graphs useful?

3. Remember in grade 7….. 1) A question is asked.
How did you collect data?
1) A question is asked.
What kind of ice cream does everyone like in our class?
A survey is made.

4. Then a Bar graph was made.

5. A pie chart could have been made.

6. Or a picto gram

7. And finally a scattered plot

8. Let me ask you some questions
How many people like vanilla?
Which flavor is preferred the most?
Which flavor is prefferd the least?

9. Vocabulary Variation: How is the graph changing.
Is it increasing Is it decreasing

10. Vocabulary Relation: A relationship between 2 things Example:
Distance vs time
Cost vs time

11. Vocabulary
Maximum:
The highest point on the graph

12. Vocabulary
Minimum:
Lowest point on the graph

13. Vocabulary
Axis’s:
Y axis
X axis

14. 1.What is the line graph about?
2. What is the busiest time of day at the store?
3. At what time does business start to slow down?
4. How many people are in the store when it opens?
5. About how many people are in the store at 2:30 pm?
6. What was the greatest number of people in the store?
7. What was the least number of people in the store?

15. Issac Newton

16. Lets graph motion!
Time(x)
Distance(y) 1 2 3 4 5 6

17. Constricting a table of values from a graph

18. Rule to table of values
David's salary is calculated using the rule s=9n+12, where s represents the salary and n the number of hours worked.
Construct a table of values:
Number of weeks (n)
Salary (y)