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Mathematics 13 Online
OpenStudy (kearsten):

state the domain. MEDAL AND FAN. equation below

OpenStudy (anonymous):

were

OpenStudy (kearsten):

\[y=\sqrt{2x+6}\]

OpenStudy (freckles):

you don't want any negatives inside there you want 2x+6 to be positive or zero that means you want 2x+6 to be greater than 0 or equal to 0 that means you need to solve 2x+6>=0

OpenStudy (kearsten):

umm okay...

OpenStudy (freckles):

umm okay... is an interesting response

OpenStudy (freckles):

what does it that really mean

OpenStudy (kearsten):

it means i have no idea wat u just said

OpenStudy (freckles):

oh I would have no way of knowing that

OpenStudy (freckles):

do you know what positive or zero means?

OpenStudy (kearsten):

yes

OpenStudy (freckles):

means >0 or =0 right?

OpenStudy (kearsten):

okay..

OpenStudy (freckles):

if something is positive it is always greater than 0 if something is 0 it is equal to 0 we wanted 2x+6 to be positive or zero so we wanted 2x+6>=0

OpenStudy (freckles):

solving 2x+6>=0 will give you the domain

OpenStudy (kearsten):

okay

OpenStudy (freckles):

in pretty math symbols \[ \text{ you need to solve } 2x+6 \ge 0\]

OpenStudy (kearsten):

r u gonna help me or just sit there?

OpenStudy (freckles):

I didn't know you required further assistance

OpenStudy (freckles):

you first want to isolate the 2x part

OpenStudy (freckles):

try subtracting 6 on both sides

OpenStudy (kearsten):

i completely suck at math andneed an answer

OpenStudy (freckles):

let me see what you have after subtracting 6 on both sides

OpenStudy (kearsten):

x=-3?

OpenStudy (freckles):

well don't forget you had an inequality not and equation

OpenStudy (freckles):

2x+6>=0 subtract 6 on both sides 2x>=-6 divide 2 on both sides x>=-3

OpenStudy (freckles):

anyways just remember us people on openstudy who help don't get paid and we don't have esp so I would appreciate being spoke kinder too thanks

OpenStudy (kearsten):

xp

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