Y=-2(x-4)^2

What is the domain and range?

Domain: X=Set of all real numbers

Range: y< or = to 0

Domain and Range meaning

Domain: This is the set of possible x-values for a function. You can put all the values into the function without causing any issues, like dividing things by zero or taking the square root of a negative number. Range: This is the complete set of possible y-values. It includes all the values from the function based on the domain.

Is this graph a function why or why not?

y = -2(x – 4)^2 passes the vertical line test. The vertical line test is if a vertical line crosses the graph at more than one point then the relation is not a function. In my case the vertical line will only cross the graph at exactly one point.

Self Assessment

During this assignment, I represented my thinking in multiple ways by explaining what one thing is and then explaining how I figured it out. I showed this in my “is this graph a function by explaining what the vertical line test is and how to use it. During this assignment, I used Mathematical vocabulary during my explanation of what a “Domain and range” actually is, and I used this vocabulary during my explanation for the “Is this graph a function” section in this edublog post. I also used my math knowledge when describing the domain and range, and used communication skills when expanding on my ideas. An example of when I used my formatting skills is my distinct separations in between new paragraphs and titles.