Question

Consider the function , f(x)=4x-5 what is the domain value that correspond to an output of f(x) = 11

Answer 1

x=11

Explanation:

Evaluate for x=4

(4)(4)−5

(4)(4)−5

=11

Answer 2

x = 4

Explanation:

given f(x) = 11 then equate f(x) = 11 and solve for x

4x - 5 = 11 ( add 5 to both sides )

4x = 16 ( divide both sides by 4 )

x = 4 ← value of x in the domain