Table of Contents
How do you find ordered pairs of sets?
The pair of elements that occur in particular order and are enclosed in brackets are called a set of ordered pairs….For example:
- Ordered pairs (x, y) and (2, 7) are equal if x = 2 and y = 7.
- Given (x – 3, y + 2) = (4, 5), find x and y. Solution:
- Given (3a, 3) = (5a – 4, b + 1)
How do you find the ordered pair of a number?
Ordered pairs are often used to represent two variables. When we write (x, y) = (7, – 2), we mean x = 7 and y = – 2. The number which corresponds to the value of x is called the x-coordinate and the number which corresponds to the value of y is called the y-coordinate.
What is the first number of an ordered pair?
coordinate
In an ordered pair, such as (x, y), the first value is called the x-coordinate and the second value is the y-coordinate. Note that the x-coordinate is listed before the y-coordinate. Since the origin has an x-coordinate of 0 and a y-coordinate of 0, its ordered pair is written (0, 0).
What is the value of each finger on the unit circle?
Each one of your five fingers represents a special point on the Unit Circle: Thumb – 0° or 0π (2π) Index Finger – 30° or π/6 Middle Finger – 45° or π/4
What is the unit circle activity?
This activity is a SUPPLEMENT to your lesson on the Unit Circle. Your students must know how to create it using Special Right Triangles. This activity is meant to create a recall point for your students. Meaning, something exciting to remember the lesson by and its importance. So when they hear the terms Unit Circle they think back and go “Oh Yeah!
How can I help my students remember the unit circle?
Note: This trick is best used to help remember the first quadrant of the unit circle but it can be modified to recall the whole Unit Circle! You will want your students to use the hand opposite the one that they write with. If they write with their right hand use their left, if they write with their left hand then use their right.
How do you find sine and cosine in first quadrant?
Follow step one and two for Finding Sine and Cosine: First Quadrant. Going back to our example of 30° or π/6 we get (3,1). Rotate your ordered pair 90° counter clockwise and turn into a fraction.