Bell Work 11/12/14 Graph the points on the number line.

Chapter 5A Linear Functions I Next Chapter Chapter 5A Linear Functions I

The Coordinate Plane Heading 4/16/2017 TSWBAT: plot points on a coordinate plane and identify the quadrant. Students graph a linear equation and compute the x- and y- intercepts (e.g., graph 2x + 6y = 4). They are also able to sketch the region defined by linear inequality (e.g., they sketch the region defined by 2x + 6y < 4).

Notes The Coordinate Plane x-axis = the horizontal axis y-axis = the vertical axis origin = the center, is at point (0,0) y-axis x-axis origin

Notes Ordered pair x-coordinate y-coordinate x-coordinate = the number of spots on the x-axis if positive, go to the right if negative, go to the left y-coordinate = the number of spots on the y-axis if positive, go up if negative, go down

What is the x-coordinate? What is the y-coordinate? Notes Plot the ordered pair Ex. 1) Start at the origin. 2) Move to the right or left according to the x-coordinate. origin What is the x-coordinate? 3) Move up or down according to the y-coordinate. What is the y-coordinate?

What is the x-coordinate? What is the y-coordinate? Notes Now you try. Plot the ordered pair Ex. 1) Start at the origin. 2) Move to the right or left according to the x-coordinate. origin What is the x-coordinate? 3) Move up or down according to the y-coordinate. What is the y-coordinate?

Notes Plot the points on the graph.

Notes Now you try. Plot the points onto the graph.

C Notes Quadrants What does quad mean? a coordinate plane is split up by the x-axis and y-axis into four equal squares we label the quadrants I, II, III, IV C y Number them counter clock-wise The top right one is first because all of the numbers are positive. x

Notes Identify the quadrant the point is in. Point Quadrant Now you try.

Summary To plot a point you need the points ___________. The first coordinate is the __-coordinate and it tells you how many spots to go right (if positive) or ____ (if negative). The next coordinate is the y-__________ and it tells you how many spots to go ___ (if positive) or down (if ________). coordinates x left coordinate up negative

Today’s Homework Rules for Homework Pencil ONLY. Must show all of your work. NO WORK = NO CREDIT Must attempt EVERY problem. Always check your answers.

Homework 5.0 Plot the points onto the graph and name the quadrant.

Ticket Out the Door Complete the Ticket Out the Door without talking!!!!! Talking = time after the bell! Put your NAME on the paper. When finished, turn your paper face DOWN. Plot the point onto the graph and name the quadrant.