Presentation on theme: "What 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?"— Presentation transcript:
What 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?
Solution 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.
3-3 The Coordinate Plane
Coordinate Planes X-axis Y-axis Quadrant One Quadrant Two Quadrant Three Quadrant Four origin
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) Quadrant One ( +, +) Quadrant Two (-, +) Quadrant Three (-, -) Quadrant Four (+, -)
To read or write an ordered pair always locate the x coordinate first X -Axis ( 1, )
Y axis Then locate the y coordinate. ( 1, 3 )
The ordered pair at the origin is (0, 0) What are the ordered pairs for these points? (3,4) (1,1) (2, -2) (0, -3) (-4, 0) (-3, 3)
Plot the following points on the coordinate plane. (2, -4) (-1, -1) (3, 2) (-4, 3)
When 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.
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 the x-coordinate first and then the y-coordinate.