CHAPTE Slop KEY CONCEPT Definition Slope is the

KEY CONCEPT Definition: Slope is the rate of change between any two points on

FIND THE SLOPE Count how many units you “rise” (up or down) and how

EXAMPLE 1 seconds (y) 30 25 20 15 10 5 1 2 3 4

WHAT DOES THE SLOPE REPRESENT? So, for every 5 seconds between a lightning flash

YOU TRY Graph the data about plant height for a science fair project. Then

EXAMPLE 2 Account balance ($) Renaldo opened a savings account. Each week he deposits

GOT IT? Jessica has a balance of $35 on her cell phone account. She

Example 1 seconds (y) • 30 25 20 15 10 5 1 2 3

What does the slope represent? So, for every ______ between a lightning flash and

You Try • Graph the data about plant height for a science fair project.

Example 2 Slope = The slope is ____________________________ Account balance ($) • Renaldo opened

Got it? • Jessica has a balance of $35 on her cell phone account.

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CHAPTE Slop

KEY CONCEPT Definition: Slope is the rate of change between any two points on a line. Formula:

EXAMPLE

DEFINITION

FIND THE SLOPE Count how many units you “rise” (up or down) and how many units you “run” (left or right) 3 2

EXAMPLE 1 seconds (y) 30 25 20 15 10 5 1 2 3 4 5 6 miles (x)

WHAT DOES THE SLOPE REPRESENT? So, for every 5 seconds between a lightning flash and the sound of thunder, there is 1 mile between you and the lightning strike.

YOU TRY Graph the data about plant height for a science fair project. Then find the slope of the line. Explain what the slope represents. Somebody come up and graph the data Slope = 1. 5 Slope represents- The plant grows 1. 5 cm per week.

EXAMPLE 2 Account balance ($) Renaldo opened a savings account. Each week he deposits $300. Draw a graph of the account balance versus time. Find the numerical value of the slope and interpret it in 2400 words. 2100 1800 1500 1200 900 600 300 1 2 3 4 5 6 7 8 Time (weeks)

GOT IT? Jessica has a balance of $35 on her cell phone account. She adds $10 each week for the next four weeks. Graph the account balance versus time. Find the numerical value of the slope and interpret it in words.

EXIT TICKET

Chapter 1. 8 Slope

Key Concept Definition: Slope is the rate of change between any two points on a line. Formula:

Example • Slope =

Definition •

Find the Slope Count how many units you “rise” (up or down) and how many units you “run” (left or right)

Example 1 seconds (y) • 30 25 20 15 10 5 1 2 3 4 5 6 miles (x)

What does the slope represent? So, for every ______ between a lightning flash and the sound of thunder, there is ______ between you and the lightning strike.

You Try • Graph the data about plant height for a science fair project. Then find the slope of the line. Explain what the slope represents. Slope = Slope represents-

Example 2 Slope = The slope is ____________________________ Account balance ($) • Renaldo opened a savings account. Each week he deposits $300. Draw a graph of the account balance versus time. Find the numerical value of the slope and interpret it in words. 2400 2100 1800 1500 1200 900 600 300 1 2 3 4 5 6 Time (weeks) 7 8

Got it? • Jessica has a balance of $35 on her cell phone account. She adds $10 each week for the next four weeks. Graph the account balance versus time. Find the numerical value of the slope and interpret it in words.

Exit Ticket 10/18 Name _________ •