8/9/24 – Introduction to Graph Characteristics

Summary: Today we examined four characteristics of graphs. Specifically the intervals where the graph is…

  • Increasing
  • Decreasing
  • Positive
  • Negative

In the graph below the red interval -1<x<2 represents where the graph is decreasing (down-hill). The green intervals -∞<x<-1 and 2<x<∞ represent where the graph is increasing (uphill).In the graph below the yellow intervals -2<x<0 and 3.2<x<∞ represent where the graph is positive (above ground). The purple intervals -∞<x<-2 and 0<x<3.2 represent where the graph is negative (below ground).
The examples above are all shown using inequality notation.

Homework: None  HW01

8/8/24 – More Intervals

Summary: Today we continued to practice writing intervals using the five notations that we learned about yesterday. At the end of class we took a short quiz (TQ03)

Homework: none

8/8/24 – Shortcuts with Hexadecimal

Summary: Today we learned about why hexadecimal is useful and shortcuts to convert between binary and hexadecimal.

  • Byte – Typically 8 bits
  • Data – Any type of information. Could be represented using words, numbers, bits or other forms.
  • Overflow Error – An error that occurs when you don’t have enough room to store your data.

At the end of class we drew isometric terominos and tried to rotated them around the x, y, and z axis.

Homework: none

8/6/24 – End Behaviors

Summary: Today we reviewed End Behaviors of graphs. These are the two “arms” of the graph.

In this graph example, the left arm goes up and the right arm goes down. We would write this as…

x→-∞ y→∞
x→∞ y→-∞

which translates to…

x→-∞ y→∞ (LEFT arm UP)
x→∞ y→-∞ (RIGHT arm DOWN)

We can use chart below to to describe the four directions; LEFT, RIGHT, DOWN, UP.

 

At the end of class we took a short quiz on End Behaviors (TQ02). Example Task (Graph Family Images Sheet).

Homework: none