Question

Which of these is the domain and range for the parent linear function?

Answer 1

I think it's A but I am not quite sure

Answer 2

@phi?

Answer 3

what is the parent linear function ?

Answer 4

it doesn't have one. can you not see the attachment?

Answer 5

that attachment shows the choices but not the question.. what function are they talking about ?

Answer 6

I guess it's more like a definition.

Answer 7

if they mean a generic linear function (which is a line)
a line has all real numbers for its domain and range.
but some lines don't. Example: x=1 has only 1 as its domain

Answer 8

maybe they mean y= x as the "parent" linear function

and y= x^3 as the parent cubic function

Answer 9

Yeah, It's strange. Which answer choice would you go with?

Answer 10

the domain are all "legal" x values

the only time you get "illegal" x values are if you divide by 0
so for example 1/x would not allow x=0 (divide by 0 not allowed) and the domain is all real numbers except 0

Also illegal is to take the square root of a negative number

for
y= x
there are no illegal x's
so the domain is all real numbers
it should be obvious that if y equals x, y can be all real numbers also

Answer 11

so the range ( y values) of y=x is all real numbers

Answer 12

So it's A?
Domain: All real numbers
Range: A;; real numbers