Question

What is the domain of the following parabola?



A. x ≥ 1

B. x ≤ 1

C. All real numbers

D. y ≤ 2

Answer 1

is there any reason that you cant put in any x?

Answer 2

do you see any x as being undefined?

Answer 3

is the red dot a hole or not?

Answer 4

Every parabola has a domain of x=all real numbers

Answer 5

So the answer is C

Answer 6

not if they exclude a point

Answer 7

@MathBlonde is right

Answer 8

Range is affected by that point...not the domain

Answer 9

if x is undefined at 1 then the dom != to R

Answer 10

but I dont think its undefined here

Answer 11

The answer is C. Plain and simple.

Answer 12

lol, but it wouldnt be if 1 was a hole, plain and simple:)

Answer 13

But its not a whole. It is a dot... a point, a point on a continuous function

Answer 14

it wouldn'tbe a parabola if 1 was a hole

Answer 15

hence why i asked if it was a point or not

Answer 16

What is the domain of the following parabola?
question said

Answer 17

right, and question showed a picture. I asked about said picture not about the question asked...

Answer 18

kk

Answer 19

I thought maybe the teacher uses red for a hole and black for a dot, since really we could not see the hole anyway:)

Answer 20

no problem, it's always good to have a doubt, and check for all the posibilities

Answer 21

can i ask u guys a question

Answer 22

you just did:P

Answer 23

another one

Answer 24

of course

Answer 25

if its about another problem, you should prob start a new question.

Answer 26

hat is the domain of the graph of y = −2x2 − 4x + 7? would the answer be all real numbers to0

Answer 27

for a parabola it always is

Answer 28

ok thanks

Answer 29

can a parabola not have discontinuities? I understand all polynomials are continuous, but does that implies that all parabolas are continuous? I didn't know they were defined as only continuous. I thought it was just the name of a arc or trjectory

Answer 30

in other words
is a porabola?