1. Represent Functions
as Rules and Tables
Section 1.6

2. Functions
•
y = 8000xx yy = 8000x

3. Functions
Input Function Output
Domain Range
x yy = 8000x

4. Functions
Other ways to represent functions.
• Table
• Mapping Diagrams
Input Output
Input
(liters)
1 5 12 15
Output
(wons)
2000 10,000 24,000 30,000
1
2
3
5
0
1
2

5. Function or Not
1
3
5
0
1
2

6. Use a Problem Solving Plan
• Read and understand the problem.
• Take notes.
• Make a plan.
• Solve the problem.
• Check your answer.

7. Strategies
•

8. Strategies
Formula
• The driving distance between Daegu and Seoul is about 295
km. If you drive this trip in a total of 3.5 hours, what is your
average speed? Round to the nearest km.
• 84 km/hour

9. Strategies
• Patterns
• This table shows the height h of a paramotorist t minutes after
beginning a descent. Find the height after 7 minutes.
Time
(min) t
0 1 2 3 4
Height
(ft), h
2000 1750 1500 1250 1000

10. Strategies
Draw
• You want to tape five posters on a wall so that the spaces
between posters are the same. You also want the spaces at
the left and the right of the group of the posters to be three
times the space between any two adjacent posters. The wall
is 15 feet wide and the posters are 1.5 feet wide.
• Draw a diagram and then write and solve an equation to find
how to position the posters.

11. Formulas
•

12. Homework
• Pages 31-32 #8-10 all, 14-19 all
• Pages 38-39 #3-7 all, 14-21 all