A group of students is currently learning Pre-calculus, the introduction to calculus. A part of our lesson is to understand functions and their transformation.
Graph transformation is about understanding how does the graph change if we add, subtract, or multiply a certain value to a function. To be a function, an x-value can only correspond to one y-value.
This is a function because none of the x-value corresponds to more than one y-value.
The graph shifts upward by 5 units.
(-2, -8) → (-2, -3) (0, 0) → (0, 5) (2, 8) → (2, 13)
Continue reading “Function Transformation”
This term of Math Essential, our class was focusing preparing for the SAT test on the 6th of October; therefore students were independently working on different areas that they are struggling with. One of the main topics that I learned was Unit Circle.
Unit Circle is a circle with the radius of 1 with the origin of (0,0), which is used to calculate and understand the relationship sines and cosines of special triangles such as 30/60/90 and 45/45/90.
For Unit Circle the measurement of angle is in radians instead of degree, there are 2π radians, which is equivalent to 360 degrees.
United Circle with 30/60/90 triangle
Unit Circle with 45/45/90 triangle