For the step function f(x)=[[x]]-6, find its domain and range.

[Jmcall10]

Hi all,

a fellow friend has has asked me for assistance on this equation. My maths is limited I’m afraid.

20.f(x)=[[x]]-6

find domain and range

lind regards

jmcall10

 

[mmm4444bot]

f(x) = [[x]] - 6

find domain and range

It would be better for your friend to post their own questions; it'll save time. Where is your friend stuck?

Does your friend have any questions about what they see in their textbook regarding Domain and Range?

What has your friend tried or thought about, so far?

Does your friend understand the notation [[x]] ?

It's called the Greatest Integer Function. It also goes by the name Floor Function, sometimes written floor(x) or [x].

Tell your friend that they can get the Domain and the Range directly from a graph of y=[[x]]. The pattern is clear.

If your friend needs lesson materials, tell them to google keywords: greatest integer function.

Otherwise, we'll wait for your friend's responses and efforts, so that we can determine where exactly your friend needs help. :cool: