Will medal!!!!! Help Please!
What transformation has changed the parent function f(x) = log5 x to its new appearance shown in the graph below?
@Majesty69 Did you mean: \[\log_{5} x\] OR \[\log5x\]
the first one sorry
Are you able to help?
oh okay, no worries :) Yes, just give me a moment while i graph the original function
oh okay thank you :)
|dw:1430760918995:dw|
Im sorry i should have put the options f(x + 2) + 2 f(x + 2) − 2 f(x + 2) + 5 f(x − 2) − 5
this is my weakest part of the chapter so i need help on how to figure it out
oh okay.
so would you use slope?
no, no need to use slope. Just keep in mind shifting rules
f(x+2) means it is moved 2 left f(x+2)-2 means also 2 down
It does look like there is actually no reflection; the only thing happening here is that the function is being shifted, meaning that it has been moved to the side. If we look at the original and at the picture you posted, the graph has moved both down and left
as jamaica has said, here are a few pointers f(x)-2 --> this means that the function has moved down two. A helpful way to see this is by looking at how the point changed from (1,0) to (-1,-2) **See the change from the x variable to the other x variable, and the y-variable to the other y-variable. They both go down by 2 f(x+2) --> this means that the function has moved to the left 2 places. This is an odd rule in functions, so it's always good to remember :)
Would the answer be f(x+2)-2?
yes :) Do you understand why?
Hopefully the explanation that I just gave makes sense to you :P
Because it moves left two and down two?
yes. :)
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