What's the first step to solving this? y = 4(x – 8)^2 + 2
Expand it. and since its in vertex form , therefore we have (8,2) as the solution!
How do I expand it?
I am sorry, dont worry about expanding! the equation is already given in vertex form.
Okay, so the question is Describe whether the graph of the following equations will open up or down, be wider or narrower than standard position, and the translation from standard position (moves up/down and left/right).
opening upwards with vertex at (8,2) , its wider than the original and translated 8 units to right, 2 units up.
one more question, you have to solve and then graph it, right? thanks for your help!
Yes! In this case its very very easy because its in vertex form! When u have it in standard form, convert to vertex and you ll get answer easily! Standard form = \[a x^{2} + bx + c\] Vertex = \[k (x-m)^{2}+n\]
i feel stupid, but how did you get 8?
I just want to understand this.
wouldn't you just distribute the 4 to the x and the negative 8 to simplify it a little? :o
because its \[(x-8)^{2}\]
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