1. SWBAT… review the Cartesian Coordinate system
Mon, 10/31
SWBAT… review the Cartesian Coordinate system
Agenda
WU (15 min)
Teacher evaluation (10 min)
Cartesian Coordinate System labeling (10 min)
New unit objectives (5 min)
Brain Pop video (10 min)
Warm-Up:
1. Review this week’s agenda
2. Review your midterm
3. Take out your quarter 1 goal setting sheets – on the back, reflect on your quarter 1 goals; did you meet your goals? How do you feel? If not, what can you do differently for second quarter?
HW#1: Cartesian coordinate system

2. We have begun a new unit – Algebra: Graphs and linear functions (3 weeks)
Students will be able to:
Plot points in the Cartesian Coordinate System
Graph linear functions (equations) using a table of values
Graph horizontal and vertical lines
Use intercepts to graph a linear equation
Interpret x-and y-intercepts
Calculate slope
Use the slope and y-intercept to graph a line
Interpret slope as rate of change
Use slope and y-intercept to model data
Use the point-slope form to write equations of a line
Write linear equations that model data and make predictions
Make a scatter plot for a table of data items
Interpret information given in a scatter plot (correlation coefficients)

3. Cartesian Coordinate System
Infinity HS
Ms. Sophia Papaefthimiou

4. Objectives To remember what a the Cartesian coordinate system is
To locate points in the coordinate system
To plot points in the coordinate system

5. Brain Pop Video
Take notes in your notebooks or back of the agenda on anything you didn’t know or didn’t remember

6. A Coordinate System The horizontal line is known as the _____.
The vertical line is known as the ______.
The point at which the axes meet or intersect is known as the _____.
A coordinate system has ___ quadrants.
Abscissa
Ordinate
Origin 4

7. Coordinate Plane QUAD II QUAD I QUAD III QUAD IV y-axis
Parts of a plane
x-axis
y-axis
Origin
Quadrants I-IV
QUAD II
QUAD I
Origin ( 0 , 0 )
x-axis
QUAD III
QUAD IV

8. Plotting Points Plot these 4 points: A (3, -4) B (5, 6.5) C (-4, 5)
1. Remember when plotting points you always start at the origin.
2. Next you go left (if x-coordinate is negative) or right (if x-coordinate is positive.
3. Then you go up (if y-coordinate is positive) or down (if y-coordinate is negative) B C D F A E
Plot these 4 points:
A (3, -4)
B (5, 6.5)
C (-4, 5)
D (-7, 0)
E (0, -4)
F (0, 0)

9. A Coordinate System
Any point P is represented by an _______ of numbers written in the form (x, y)
ordered pair

10. A Coordinate System
The x-value is always ______ and the y-value is always second.
First

11. When a point is plotted on the coordinate system, a _______ (positive or negative) x value indicates a movement to the left. A _______ (positive or negative) y value indicates a movement down.
Negative, negative

12. When a point is plotted on the coordinate system, a _______ (positive or negative) x value indicates a movement to the right. A _______ (positive or negative) y value indicates a movement up.
Positive, positive

13. D. Point P

14. Daniela plotted the coordinates of the 2 largest toy shops in the city
Daniela plotted the coordinates of the 2 largest toy shops in the city. The coordinates of Shop A are (2,6). The coordinates of Shop B are in Quadrant II with the same y-coordinate as Shop A. What are the coordinates of Shop B?
A. (2,0)
B. (3,6)
C. (4,−6)
D. (−5,6) D