Learning Targets: - I can use the signs and integers of the coordinates in an ordered pair to find its location in a coordinate plane. - I can graph.

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Presentation transcript:

Learning Targets: - I can use the signs and integers of the coordinates in an ordered pair to find its location in a coordinate plane. - I can graph points in all four quadrants of the coordinate plane to solve real-world and mathematical problems. Designed by Skip Tyler, Varina High School

What do you know about the Coordinate Plane? (KWL Chart)

We have been working on vertical and horizontal numberlines…now we are going to see what happens when they intersect at zero!

-Horizontal number line is called the x-axis -Vertical number line is called to y-axis

Ordered pairs are used to locate points in a coordinate plane. y-axis (vertical axis) 5 -5 5 x-axis (horizontal axis) -5 origin (0,0)

Ordered Pairs are made of two integers: -The first number is how far you go left or right (x). -The second number is how far you go up or down you (y). They are written like this (x, y)

In an ordered pair, the first number is always the x-coordinate In an ordered pair, the first number is always the x-coordinate. The second number is the y-coordinate. Graph. (-3, 2) 5 • -5 5 -5

The x-axis and y-axis separate the coordinate plane into four sections, called quadrants. II (-, +) I (+, +) III (-, -) IV (+, -)

Quadrant – (Quad = 4) the four sections that are created when the number lines intersect. Quadrant One (I) – Top right; x and y are both positive Quadrant Two (II) – Tor left; x is negative, y is positive Quadrant Three (III) – Bottom Left; x and y are both negative Quadrant Four (IV) – Bottom right; x is positive, y is negative

What is the ordered pair for A? 5 (3, 1) (1, 3) (-3, 1) (3, -1) • A -5 5 -5

What is the ordered pair for B? (3, 2) (-2, 3) (-3, -2) (3, -2) 5 -5 5 • B -5

What is the ordered pair for C? (0, -4) (-4, 0) (0, 4) (4, 0) 5 -5 5 • C -5

What is the ordered pair for D? (-1, -6) (-6, -1) (-6, 1) (6, -1) 5 -5 5 • D -5

Write the ordered pairs that name points A, B, C, and D. 5 A = (1, 3) B = (3, -2) C = (0, -4) D = (-6, -1) • A -5 5 • D • B • C -5

Name the quadrant in which each point is located (-5, 4) II III IV None – x-axis None – y-axis

Name the quadrant in which each point is located (-2, -7) II III IV None – x-axis None – y-axis

Name the quadrant in which each point is located (0, 3) II III IV None – x-axis None – y-axis

Let’s Practice! Plot each of the following points and label them with the letter: A (3, 4) B (-5 , 2) C (3, -2) D (-1, -5) E (0,0)

Exit Slip Plot the four points on your coordinate plane. Label them with the letter: A (4, 2) B (-3, 2) C (-1, -4) D (5, -2)