Hannah+&+Alex

Hannah Raymond's Real Life Parabola:



y= -.32(x - 0)2 + 2

Vertex: (0, 2.5) Axis of Symmetry: x = 0 Direction of Opening: Down Domain: {XER|-2. 5 ≤ X ≤ 2.5}

My estimatio n was very close but I think I might have gotten the the vertex slightly off.
== Alex's Real Life Parabola! ==

[[image:Untitled.png width="800" height="480"]]
I chose to use a slinky for my parabola. My parabola opens down and it has a vertex of (0, 2.25), therefore, the line of symmetry is x=0. The Domain of my parabola is {XER} and the Range is {YER<2.25}. My estimation of my parabola was very close to the one Autograph calculated as I ended up with the same vertex as Autograph did. I encountered many problems with my parabola, so, in the future I will make sure to select the max of the parabola in order to get the proper equation in standard form so that I can solve for the vertex and the stretch without any problems.


 * Fun Fact: ** Slinkies come in many different colours, including rainbow (like the one I have chosen), solid colours and the original, silver. Also, there are slinkies that glow in the dark!