Question

please help!!!
please explain how to get domain and range for
y=-2(x-2)^2+1
show complete solution please

Answer 1

Tigeralgebra.com gives you answers.! Medal me please!

Answer 2

i need more help then that lol

Answer 3

no like it seriously gives you the exact answer worked out

Answer 4

it shows you all the work to it.

Answer 5

what does it mean when you're looking for domain and what does it mean to look for range?

Answer 6

yes

Answer 7

domain refers to x axis only and range lowest to top on y axis

Answer 8

usually for a continuous function, the domain is all Real Numbers \(\mathbb{R} \) numbers
Think of the domain as possible values for x, and the range would be the output for y for each x.

Answer 9

i need to explain how to get the domain and range for this function

Answer 10

First, identify if your equation or function is continuous. Do you know how to do that?

Answer 11

Domain: (-∞, ∞)
Range: [-100, ∞)
but i dont know how to explain on how to get it

Answer 12

how'd you get the -100 for the range ?

Answer 13

do we not plug in zero?

Answer 14

range : ( - infinity , 1)

Answer 15

that is if your x is zero, but what if it isn't zero?

Answer 16

ohhhh so sorry, i wrote the wrong equation:(

Answer 17

you indicated in your domain a negative infinity, so how are you getting -100 ? how did you evaluate it?

Answer 18

let us try a simpler concept before we delve into functions or equations, do you mind?

Answer 19

its y=lxl-100

Answer 20

LAUGHING HYSTERICALLY INSIDE MY HEAD

Answer 21

so that is your function?
\(f(x) = |x| - 100 \)

Answer 22

yes

Answer 23

so how about we evaluate the function

Answer 24

okay, how do we d this?

Answer 25

before we proceed, have you encountered absolute values before?

Answer 26

hello? echoooooo hellooooooo o o o o o

Answer 27

omg here's math male
he's going to invade this thread

Answer 28

Ladies and gentlemen! Seems as though we are talking about two different functions here! Unless I'm sorely mistaken, we are to find the domain and range for the quadratic function y=-2(x-2)^2 + 1. Is that correct, or not?

Answer 29

it is not correct

Answer 30

sorry, ive not got much time to explain this and having difficult time as i cannot explain in eng

Answer 31

she said she put the wrong function initially and then gave the proper one

Answer 32

okay, I am trying to figure out if you have a good idea how to interpret absolute values so I do not start with something you haven't encountered

Answer 33

Oh, OK. So you want to focus on the problem involving absolute value. All right.

I'd suggest that you, @Sammii09, graph y = |x| first. Doing so will help you to understand domain and range in connection with the abs. val. function.

Answer 34

that is a good way to show the general graph of absolute value

Answer 35

there should be a symmetry of values from the -x and +x and also the same value of +y

Answer 36

now that is graphically, how about we do it analytically

Answer 37

i know how to graph, i just need to help me explain how to get domain and range please