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Algebra 1

Algebra 1. 4.1 Plot Points in a Coordinate Plane. 4.1 Plot Points in a Coordinate Plane. Ordered Pair (x,y) The location of a point on a coordinate plane. (horizontal movement,vertical movement) Coordinate Plane. y-axis. x-axis. 4.1 Plot Points in a Coordinate Plane. Quadrant

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Algebra 1

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  1. Algebra 1 4.1 Plot Points in a Coordinate Plane

  2. 4.1 Plot Points in a Coordinate Plane • Ordered Pair (x,y) The location of a point on a coordinate plane. (horizontal movement,vertical movement) • Coordinate Plane y-axis x-axis

  3. 4.1 Plot Points in a Coordinate Plane • Quadrant One of the four parts into which the axes divide a coordinate plane; labeled I, II, III, IV y-axis Quadrant II Quadrant I x-axis Quadrant III Quadrant IV

  4. Naming Points in a Coordinate Plane (Graph) (4,4) 2 up on y-axis 4 up on y-axis (-4,2) 4 to the left on x-axis 4 to the right on x-axis 5 to the left on x-axis 3 to the right on x-axis 4 down on y-axis 4 down on y-axis (3,-4) (-5,-4)

  5. Naming Points in a Coordinate Plane (Graph) • EX 1: Give the coordinates (x,y) of points A, B, and C. A (2,2) C (-2,1) B (1,-3)

  6. Assignment: Page 209 • # 4 - 12 all • You have 3 minutes

  7. Plot points in a coordinate plane • EX 2: Plot the point in a coordinate plane. Describe the location of the point. • a. A(0, 3) b. B(l, -2) c. C(-3, -4) A • On the y-axis B. quadrant IV C. quadrant III B C

  8. Assignment: Page 209 • # 16 - 20 eoe • You have 3 minutes

  9. Graph a function • EX 3: Graph the function y = x + 1 with domain 2, 1, 0, 1, 2. Then identify the range of the function. Step 1 Make a table. Remember, domain is the x values and range is the y values

  10. Graph a function continued • EX 3: Step 2 List ordered pairs (x,y) (-2,-1) (-1,0) (0,1) (1,2) (2,3)

  11. Graph a function continued • EX 3: (-2,-1), (-1,0), (0,1), (1,2), (2,3) Step 3 Plot Points

  12. Assignment: Page 209 • # 4-12 all, 16-20 eoe, 24-36 eoe • You have the rest of class.

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