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

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)

Cartesian Coordinate System Infinity HS Ms. Sophia Papaefthimiou

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

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

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

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

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)

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

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

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

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

D. Point P

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