Do Now. You have 5 minutes.

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# Do Now. You have 5 minutes. - PowerPoint PPT Presentation

Do Now. You have 5 minutes. . 1. Jenny has saved \$25 to buy a new pair of shoes. Each month, she saves \$5 towards the shoes. Which expression could be used to find the total amount saved after m months? 5m 25 + 5m 25m + 5 25m + 5m

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Do Now. You have 5 minutes.

1. Jenny has saved \$25 to buy a new pair of shoes. Each month, she saves \$5 towards the shoes. Which expression could be used to find the total amount saved after m months?

• 5m
• 25 + 5m
• 25m + 5
• 25m + 5m

2. The cost to rent a laptop from Best Buy is \$20 plus \$10 per hour. Write an expression to find the total cost for any number of hours.

Today’s Objective

SWBAT graph ordered pairs on the coordinate plane.

Introduction to Graphing: terms for those in the know
• When graphing points: you can locate a point by using a coordinate system similar to the grid of a park (or Washington, DC) – put up map of Washington, DC.
• The grid is called: Coordinate plane
• Y-axis: the y-axis the vertical number line
• X-axis: the horizontal number line
• Quadrants: four sections of the coordinate plane
• Origin: the point of intersection of the two number lines
Intro to Graphing: Ordered Pairs
• You can graph any point on the coordinate plane by using an ordered pair. (3,2)
• The first number in the ordered pair is the x-coordinate.
• The second number is the y-coordinate.
• Steps to name an ordered pair:

1. Start at the origin

2. Move right to find the x-coordinate

3. Move up to find the y-coordinate

Review Material:
• Brain Pop: http://www.brainpop.com/math/geometryandmeasurement/coordinateplane/
Guided Practice: White Boards
• Draw y-axis
• Draw x-axis
• Put a star at the origin
• Number -3 to 3 on the x-axis
• Number -3 to 3 on the y-axis
• Graph the ordered pair (3, 2)
• Graph the ordered pair (-2, 1)
• Graph the ordered pair (1, -2)
• Graph the ordered pair (-1, -3)
Independent Practice
• Pg. 278: 1-11
• Computer users: first take the Review Quiz on Brain Pop; after you have completed this, take the Graded Quiz. Review your answers and write down how many you got correct.
Tonight’s Homework:
• Pg. 279: 12 – 33 (odds only) – for the problems that ask you to graph each ordered pair on a coordinate plane, you will need to draw your own coordinate plane.
Exit Ticket:

1. Draw a coordinate plane.

• Label the x-axis
• Label the y-axis
• Label the origin
• Graph the point (1,3)