Interpreting the Graph of a Function

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Examples, solutions, and videos to help Algebra I students learn how to create tables and graphs of functions and interpret key features including intercepts, increasing and decreasing intervals, and positive and negative intervals.

New York State Common Core Math Algebra I, Module 3, Lesson 13

Worksheets for Algebra 1

Lesson 13 Classwork

This graphic was shared by NASA prior to the Mars Curiosity Rover landing on August 6, 2012. It depicts the landing sequence for the Curiosity Rover’s descent to the surface of the planet.

What information is available to you in this graphic?
What information is in the box in the upper right corner?
Why are there negative time values? Should other quantities be measured with negative numbers?
What does this symbol ∼ mean?
Which units, metric or customary, will make this problem easier to understand?

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Lesson 13 Exit Ticket Sample Solutions

1. Estimate the time intervals when mean energy use is decreasing on an average summer day. Why would power usage be decreasing during those time intervals?

2. The hot summer day energy use changes from decreasing to increasing and from increasing to decreasing more frequently than it does on an average summer day. Why do you think this occurs?

Homework Starter

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