Select the correct answer. Which function represents the inverse of function f? A. B. C. D.

Step-by-step explanation:

Further explanation

A ƒunction can be expressed in the form of a cartesian diagram, sequential pairs, or arrow diagrams  

If a ƒunction (f) pairs members of set A to set B, then the inverse of ƒunction f (f⁻¹) pairs members of set B to A, or easily f⁻¹ is the opposite of f  

or in the form of equations  :

f (x) = y if and only if g (y) = x  

g (y) is called the inverse of f (x)  

The step for determining the inverse ƒunction  

1. expresses the ƒunction y = f (x) in the form x = f (y)  

2. f⁻¹(y) = g(y)  

3. Replace the letter y with x so we get the inverse ƒunction formula f⁻¹(x)  

Known :  

f (x) =x² +5  

suppose f (x) = y then  

y = x² +5  

x ² = y-5

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

if the angular bisector of an triangle bisects the opposite side, prove that the other two sides are equal.