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Mathematics 7 Online
OpenStudy (chycora):

Estimate the domain of the following graph. A. {-5, 5} B. -7 ≤ y ≤ 7 C. y = 1.5 D. x is all real numbers.

OpenStudy (chycora):

i think the answer is A

OpenStudy (bonnieisflash1.0):

@chycora what took you so long to come on to openstudy

OpenStudy (chycora):

i had hw to do then i start to cook dinner and do my big cousin hair so yeah sorry about that

OpenStudy (bonnieisflash1.0):

cook really

OpenStudy (bonnieisflash1.0):

lol

OpenStudy (bonnieisflash1.0):

necesitas ayuda

OpenStudy (chycora):

yeah you dont believe me :(

OpenStudy (bonnieisflash1.0):

yes i do that it's funny because you really cook

OpenStudy (chycora):

oh lol and yeah i do but only sometimes

OpenStudy (chycora):

but can you help me

OpenStudy (bonnieisflash1.0):

estupendo

OpenStudy (chycora):

pleaseeee

OpenStudy (bonnieisflash1.0):

Por supuesto

OpenStudy (bonnieisflash1.0):

which means sure got to know spanish

OpenStudy (chycora):

ohh okay

OpenStudy (bonnieisflash1.0):

where did @zacharydoc

OpenStudy (bonnieisflash1.0):

go

OpenStudy (chycora):

idk

OpenStudy (zacharydoc):

what

OpenStudy (chycora):

can you help me

OpenStudy (bonnieisflash1.0):

holla mi amigo

OpenStudy (chycora):

i think its A

OpenStudy (zacharydoc):

sure wheres the graph

OpenStudy (bonnieisflash1.0):

i think it's A TO

OpenStudy (bonnieisflash1.0):

si?

OpenStudy (chycora):

am i correct

OpenStudy (bonnieisflash1.0):

i think it's a to because it is so close to -5 and 5

OpenStudy (chycora):

right @bonnieisflash1.0

OpenStudy (zacharydoc):

well I know that its coordinates are (1.5,0)

OpenStudy (mathstudent55):

A is incorrect.

OpenStudy (chycora):

okay so then thee other correct choice is c right

OpenStudy (bonnieisflash1.0):

mi amigo lo que está mal acerca de unas

OpenStudy (mathstudent55):

Notice that the graph is of a line. Do you see the arrowheads at the ends? That means the graph is not a line segments with endpoints at (-5, 1.5) and (5, 1.5). The line goes on forever to the right and to the left.

OpenStudy (chycora):

the*

OpenStudy (bonnieisflash1.0):

podría

OpenStudy (mathstudent55):

The domain is the set of all the values that x can have. C has y in it. That has nothing to do with domain.

OpenStudy (chycora):

okay

OpenStudy (chycora):

so you telling me the answer is D

OpenStudy (zacharydoc):

it must be you've already went through abc

OpenStudy (bonnieisflash1.0):

estudiante de matemáticas 55 podría estar en lo cierto

OpenStudy (mathstudent55):

What are all values that x can have if you go from all the way to the left to all the way to the right? By "all the way" I mean all numbers to the left and right even outside of what the graph shows. The graph extends from negative infinity on the left to positive infinity on the right.

OpenStudy (chycora):

true ^

OpenStudy (mathstudent55):

When you draw a line, you draw a segment of a line and write arrowheads at the ends. That shows that the line extends forever in both directions.

OpenStudy (chycora):

right

OpenStudy (mathstudent55):

The paper we draw the line on or the computer screen only has so much space, so we cannot draw a line that has infinite length in its entirety. We represent the line with a segment and arrowheads.

OpenStudy (chycora):

@mathstudent55 thanks for your help i got it now

OpenStudy (chycora):

the answer was D

OpenStudy (mathstudent55):

For example, when we want to represent a point, we draw a dot on the paper. The dot is only a representation of a point. In reality, a point has no size. It has no length, width, or height. Since we need to see where the point is, we use a dot to represent it, but a dot is only a representation of a point. In fact, inside any dot you write, no matter how small, there is an infinite number of points.

OpenStudy (mathstudent55):

Ok, so what is your answer to the original question above?

OpenStudy (chycora):

the answer was D

OpenStudy (mathstudent55):

That's correct.

OpenStudy (bonnieisflash1.0):

se le ocurrió la respuesta correcta

OpenStudy (bonnieisflash1.0):

want to watch a video

OpenStudy (chycora):

i brb

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