2.9 Analyzing Graphs

2.9 Analyzing Graphs

This Week

• M - Last Lesson 2.9 Analyzing Graphs

• T - Review Unit 2

• W - Review Unit 2

• Th - Unit 2 Test

• F - Begin Unit 3

Multiple Choice

Which relation is a function?

• a

• b

• c

• d

2.9 Analyzing Graphs

In this lesson, you will be given a series of graphs and questions about those graphs. Use the graphs to answer the questions. In each graph, the independent variable is on the x-axis, while the dependent variable is on the y-axis. Remember that closed circles on a graph mean that value is included, while open circles means that value is not included.

Recap

• x-axis - input values (independent variable)

• y-axis - output values (dependent variable)

• closed circles - value is included

• open circles - value is not included

Rate of Change

Use the slope formula.

What is the rate of change from [-3, -2]?

What are the two points?

According to the given graph, what would be the cost of postage for a package that weighs 3.2 pounds?

Multiple Choice

According to the given graph, what would be the cost of postage for a package that weighs 1.5 pounds?

• 4 dollars

• 8 dollars

• 12 dollars

• 16 dollars

Multiple Choice

• 10^o F

• 40^o F

• 70^o F