Presentation on theme: "What Comes Next Here is a sequence of letters:"— Presentation transcript:
1What Comes Next Here is a sequence of letters: O T T F F S ____, _____, _____What 4 letters come next in this sequence?What does the sequence represent?
2Solution The next four letters are S, E, N, and T. Each letter is the first letter of a number written in word form, the numbers being the sequence of natural numbers: One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten.
4Coordinate Planes Quadrant Two Quadrant One Quadrant Three Quadrant Y-axis4321-1-2-3-4QuadrantTwoQuadrantOneX-axisQuadrantThreeQuadrantFourorigin
5Quadrant Two (-, +) Quadrant One ( +, +) Quadrant Three (-, -) An ordered pair is a pair of numbers used to locate a point on the coordinate plane.The ordered pair is always listed with the x-coordinate then the y-coordinate. ( x, y) Ex. (5, -3)QuadrantTwo(-, +)QuadrantOne( +, +)4321-1-2-3-4QuadrantThree(-, -)QuadrantFour(+, -)
6To read or write an ordered pair always locate the x coordinate first. X -Axis( 1, )
7Then locate the y coordinate. 4321-1-2-3-4( 1, 3 )Y axis
8The ordered pair at the origin is (0, 0) What are the ordered pairs for these points?(3,4)(-3, 3)4321-1-2-3-4(1,1)(2, -2)(-4, 0)(0, -3)
9Plot the following points on the coordinate plane. (2, -4) (-1, -1) (3, 2) (-4, 3)4321-1-2-3-4
10When will we use this?The coordinate plane is used to locate places on a map. Lines of latitude and longitude are used.Hurricane tracking uses the coordinate plane.
11Summary The coordinate plane is used to plot points on a graph. There are 4 Quadrants in the coordinate plane.The x-axis is the horizontal axis, the y-axis is the vertical axis.Points are written as ordered pairs: (x, y).To locate a point on a graph locate thex-coordinate first and then the y-coordinate.