Good morning fellow blogger's, it's Jessica,
Yesterday's lesson consisted mostly on review for all of us. We commenced the class with Mr. Piatek asking us if we completed our homework. Further on during the class, Mr. Piatek announced that we are going to be having a quiz on Monday September 20th. Here's a recap on what he expects to be on the quiz:
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-Linear functions.
-Slope intercept and y intercept.
-Interval notation: ex) Draw a graph and complete the following.
-Quadratic Functions and how to graph the quadratic functions.
-Domain and range.
- + Everything else we covered.
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Throughout the class, we continued with graphing quadratic functions, but we also explored the concepts of:
f(x)=ax2,
f(x)= (x-h)2,
and f(x)=x2 + k.
As we already know, "h" and "k" represents the coordinates of a vertex. We use the "h" value to move to the right when negative, and to the left when positive, known as a flip. We use the "k" value to move up and down. The value of "a" represents the graph, moving upwards when it is greater and opposed when lower. After a quick review, we did a few equations, and then Mr. Piatek showed us an alternative of graphing quadratic functions, besides using the table of values constantly. Finally, Mr. Piatek requested us to finish our quadratic graphs until page 21 while completing the class by watching a video of spoons. If you don't understand the alternative way of graphing, visit this link. It helped me out a bunch!
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