What is the inverse of the function f(x) =2x-10

The inverse of the ƒunction f(x) =2x-10  

Set A to set B is said to be a ƒunction if each member of set A pairs exactly one member of set B  

So, one value of x is only assigned to one value of y  

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  

Known :  

f (x) = 2x-10  

suppose f (x) = y then  

y = 2x-10  

2x = y + 10  

so that  

the ƒunction has an inverse ƒunction  

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the inverse of the ƒunction  

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the inverse of a ƒunction always a ƒunction  

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Keywords: ƒunction, inverse ƒunction, arrow diagrams  

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet