By the way, is there a word for when the parabola gets thinner?(Un-dilation?)
When the parabola gets wider or thinner, it is still called a Dilation. A dilation factor of 10 would make the parabola thinner. A dilation factor of 1/2 would make the parabola wider.
for the HW, what is vertically dilation because for number 2 it says that the function is vertically stretched with a dilation factor of 1/5?
Vertically stretched is just another way of saying dilation since the parabola kind of stretches upward or flattens out. Look for the factor to see if it gets more narrow or wider.
How do write the translations again
Check your notes for the two types of translations.
Vertical Translation = x^2 + 7
Horizontal Translation= (x + 7)^2
is my blobfish okay
Yes, just a little distressed.
Comment- Wow! What a cool, mathy website! This really did clear the transformation thing up!
Question- Is there a mathematical reason for why a number in the parenthesis is really it's opposite?
Quadratic shuffle is awesome! "Slide to the left, slide to the right... Reflect, reflect"
Great question! I briefly mentioned in class the reason the number in the parenthesis is really it's opposite. When trying to locate the x-intercepts of a function we need Y to equal 0. So if y = (x - 4)^2 think that only an X value of positive 4 will make Y equal 0.
The same works with horizontal translations. (x + 4)^2 only an X value of negative 4 will keep the vertex Y value at 0.
I am glad you liked the dance!
Ok👍🏻 I was wondering if you could respond to something I sent you on engrade...
I watched the video...this stuff is easy for me.
I got a lot of notes from this video down on a piece of paper, this video really helped me understand! 😀😀
I just realized I didnt comment on this one
Question: How will we know the dilation if there isn't a leading coefficient?
instead of a(x-h)^2+k
I replayed the video 5x and still can't find an answer. Did I miss it?
Oops kinda late
interesting video as always. i am trying to bring my grade up so i will comment on all of your videos sorry they will all be late.
Nice video probably should have watched it before the test be ause it really cleared things up