Find the range of the function f(x)=2x+7 for the domain -2,3,8
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The most appropriate choice for function can be given by
qp(3) =
pq(3) =
What is function?
A function from A to B is a rule that maps to each element of A a unique element of B.
A is called the domain of the function and B is called the co domain of the function.
We can do addition, subtraction, multiplication, division and composition on functions.
Let f and g be two functions
fg(x) = f(g(x)) and g
f(x) = g(f(x))
This is known as composition of function.
Here,
qp(x) = q(p(x))
=
=
qp(3) =
=
pq(x) = p(q(x))
= p()
=
=
=
pq(3) =
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