In the previous post, we have learned the graphical representation of domain and range. The domain of the function is the shadow or projection of the graph of to the x-axis (see red segment in the figure below). The range of is the projection of the graph of to the y-axis (see green segment in […]

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# High School Algebra

## The Algebra and Geometry of Square Root

If we have a square with a given area, then we can find the length of its side. For example, a square with area 4 square units has a side length of 2 units. In other words, in finding the side length of a square with area 4 square units,we are looking for a number […]

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## The effect of adding b to the linear function y = ax + b

In the previous post, we have learned about the effects of a in the linear function with equation y = ax. In this post, we learn about the effects of adding b to that equation. That is, we want to learn the effects of b in the linear function with equation y = ax + […]

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