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## PowerPoint Slideshow about ' Do Now. You have 5 minutes. ' - elijah

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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)

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