Original post by Kmachakanja1
I've been given two functions
f(X) = 18x+3
g(x)= 28-d
how do I find the value of d?
f(X) = 18x+3
g(x)= 28-d
how do I find the value of d?
Where is the x in g(x)? Was that a typo?
You could find d if you where given fg(x) or gf(x).
typo
F(x)= 18x+3
g(x)= 28x-d
how do I find the value of d?
g(x)= 28x-d
how do I find the value of d?
Original post by Kmachakanja1
typo
What was g(x) or can you send a photo of the question?
Original post by Kmachakanja1
F(x)= 18x+3
g(x)= 28x-d
how do I find the value of d?
g(x)= 28x-d
how do I find the value of d?
Do you have the value of g(x), fg(x) or gf(x)?
this is the question :
two functions are defined by
f(X)= 18x 3.
g(X) = 28x-d
where d is an unknown number. it is known that
f^-1 g^-1 (x) = g^-1 f^-1(x)
Find the value of d?
two functions are defined by
f(X)= 18x 3.
g(X) = 28x-d
where d is an unknown number. it is known that
f^-1 g^-1 (x) = g^-1 f^-1(x)
Find the value of d?
(edited 6 years ago)
Original post by Kmachakanja1
this is the question :
two functions are defined by
f(X)= 18x 3.
g(X) = 28x-d
where d is an unknown number. it is known that
f^-1 g^-1 (x) = g^-1 f^-1(x)
Find the value of d?
two functions are defined by
f(X)= 18x 3.
g(X) = 28x-d
where d is an unknown number. it is known that
f^-1 g^-1 (x) = g^-1 f^-1(x)
Find the value of d?
Spoiler
Original post by Kmachakanja1
this is the question :
two functions are defined by
f(X)= 18x 3.
g(X) = 28x-d
where d is an unknown number. it is known that
f^-1 g^-1 (x) = g^-1 f^-1(x)
Find the value of d?
two functions are defined by
f(X)= 18x 3.
g(X) = 28x-d
where d is an unknown number. it is known that
f^-1 g^-1 (x) = g^-1 f^-1(x)
Find the value of d?
Original post by Kmachakanja1
this is the question :
two functions are defined by
f(X)= 18x 3.
g(X) = 28x-d
where d is an unknown number. it is known that
f^-1 g^-1 (x) = g^-1 f^-1(x)
Find the value of d?
two functions are defined by
f(X)= 18x 3.
g(X) = 28x-d
where d is an unknown number. it is known that
f^-1 g^-1 (x) = g^-1 f^-1(x)
Find the value of d?
When you put f^-1 g^-1 (x) is that a product or composition of functions?
composition of functions
thanks loci Pi
that was the correct answer
that was the correct answer
Original post by Kmachakanja1
thanks loci Pi
that was the correct answer
that was the correct answer
No problem
Just out of interest, was that question for GCSE or A levels?
Quick Reply
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