Weekly Reflection 8-17-18

Domain and Range
I will be able to identify the domain and range of relations and functions.


This function has a open ended circle and a arrow on the other end. The end with the open circle means that that point is not a real point but more like an invisible barrier that shows where the function ends. This means that it is not equal to 5. On the other of the function is an arrow and because it is going up means that is considered positive infinity.You find domain be look how far left to right the function goes. The domain is parenthesis -3, positive infinity close parenthesis.They have parenthesis instead of brackets because the points are not actually real points. If the were they would brackets. You find the range by looking at the bottom to the top of the graph.The range is bracket -4, positive infinity parenthesis.

One misconception I had this week was when we were doing an activity on transformation of functions I thought the function negative outcome was either negative or positive, but they were really just negative.I overcame this by asking Mrs.Burton and she explained to me how if the constant is negative all the y values will be negative unless it is in parenthesis.

EQ: You find domain by looking how far left to right the function goes, this includes the furthermost point on the graph not just where a point is. You can find the range by looking at the bottom of the function to the top.

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