Question

I need help with this quadratic function...
f(x)=3(x-7)^2+4 with work

Answer 1

I JUST LEARNED THESE AND I LOVE THEM

Answer 2

I I don't understand it at all...

Answer 3

hi welcome to Openstudy :)
what do you have to do with this quadratic equation? any specific question?

Answer 4

Okay so the 3 means that the function is horizontally shrunk and the vertex is basically (7,4) Because |x-7| = 7 and if you plug in 7 with x you get 4.

Answer 5

Since the function is horizontally shrunk by a factor of 3, the function will look like this.

Answer 6

I started with 3(x^2-14x+49)+4 then 3x^2-42x+151...am I doing this correctly?

Answer 7

so you just have to expand it?
if so, then you are doing it right :)

Answer 8

This is horizontally shrunk but vertically expanded if that makes any sense. lol

Answer 9

well, it's definitely a process that I just don't understand but am trying to figure out.

Answer 10

Thank you for your help

Answer 11

Sure :)