If f(x) and f -1 (x) are inverse functions of each other and f(x) = 2x+5, what is f -1 (8)?
1 answer:
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(A) Product of and
is:
(B) Yes.
Product of and
= Product of
and
because multiplication is commutative.
Commutative Property of multiplication says that a.b = b.a.
Thus, multiplication is same irrespective of the order of two numbers.
let's say
A(-3,1) B(-3,5) C(4,1)
we need to find the perimeter of ABC for that we find each of the sides
AB BC and AC
there is a formula to find the distance between 2 poins
let's say that a point has the structure A(x1,y1) where x=-3 and y=1 and B(x2,y2) where x2=-3 and y2=5
AB=
AB=
AB=
AB=4
we do the same thing for AC and BC
AC=
AC=
AC=7
BC=
BC=
BC=
BC=
The perimeter is equal to the sum of the sides
P=AB+AC+BC=4+7+=11+