Name:__________ warm-up 2-6

Which scatter plot represents the data shown in the table?

Which prediction equation represents the data shown in the table?

A. y = 2x + 94

B. y = 2x + 64

C. y = –2x + 94

D. y = –2x + 64

Use your prediction equation to predict the missing value.

A

The scatter plot shows the number of summer workouts the players on a basketball team attended and the number of wins during the following season. Predict the number of wins the team would have if they attended 24 summer workouts.

Details of the DayEQ:Why are both equations and inequalities needed to describe the solutions to a real-world problem?

What are the different ways that slope can be used to represent various concepts?

I will be able to…

Activities:Warm-upReview homework Notes: Special FunctionsMid-chapter testClass work/ HW

Vocabulary:• piecewise-defined function•piecewise-linear function

•step function

•greatest integer function

•absolute value function

.• Write and graph piecewise-

defined functions.

• Write and graph step and absolute value functions.

2-6 Special Functions

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A Quick ReviewWhich scatter plot represents the data shown in the table?

Which prediction equation represents the data shown in the table?

A. y = 2x + 94

B. y = 2x + 64

C. y = –2x + 94

D. y = –2x + 64

Use your prediction equation to predict the missing value.

A

The scatter plot shows the number of summer workouts the players on a basketball team attended and the number of wins during the following season. Predict the number of wins the team would have if they attended 24 summer workouts.

A Quick Review

Notes and examples

Notes and examplesWrite the piecewise-defined function shown in the graph.

Notes and examplesPSYCHOLOGY One psychologist charges for counseling sessions at the rate of $85 per hour or any fraction thereof. Draw a graph that represents this situation.

Notes and examplesSALES The Daily Grind charges $1.25 per pound of meat or any fraction thereof. Draw a graph that represents this situation.

Notes and examples

Notes and examplesGraph y = |x| + 1. Identify the domain and range.

Notes and examplesIdentify the function shown by the graph.