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Bell Work Simplify each expression 6x + (5x – 8) – 9 – (12 – 3x) 4(6n + 9) – 10n

Answers 11x – 8 -21 + 3x or 3x – 21 14n + 36 b = 11 r = -9. Bell Work Simplify each expression 6x + (5x – 8) – 9 – (12 – 3x) 4(6n + 9) – 10n Solve the 2-step equation 8 + 2b = 30 -10 – 2r = 8. The Coordinate Plane.

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Bell Work Simplify each expression 6x + (5x – 8) – 9 – (12 – 3x) 4(6n + 9) – 10n

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  1. Answers 11x – 8 -21 + 3x or 3x – 21 14n + 36 b = 11 r = -9 Bell Work Simplify each expression 6x + (5x – 8) – 9 – (12 – 3x) 4(6n + 9) – 10n Solve the 2-step equation 8 + 2b = 30 -10 – 2r = 8

  2. The Coordinate Plane

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

  4. The Coordinate Plane The quadrants are numbered counter- clockwise using roman numerals Quadrant I Quadrant II - Quadrant IV Quadrant III -

  5. 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)

  6. An Ordered Pair (5,10) X- coordinate Y- coordinate

  7. Direction of Movement for the X-Coordinate Y-axis If the x-coordinate is positive move this way If the x-coordinate is negative move this way X-axis

  8. Direction of movement for the Y-coordinate Y-axis If the y-coordinate is positive move this way If the y-coordinate is negative move this way X-axis

  9. Name the given point. Y-axis (1,3) (-2,1) X-axis (-5,-1) (4,0)

  10. Always start at the origin to plot a point.

  11. How To Plot a Point on the Coordinate Plane Y-axis (4,4) Next move on the Y-axis X-axis (-3,-1) First move out on the X-axis

  12. In an ordered pair, the first number is the x-coordinate. The second number is the y-coordinate. Graph. (-2, 2) two units to the left and up two units When you have a negative number, you go left when it’s the x coordinate and down when it’s the y coordinate. When you have a positive number you go right when it’s the x coordinate and up when it’s the y coordinate.

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

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

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

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

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

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

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

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

  21. Practice:Worksheet

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