Question

Which function is the inverse of f(x) = -5x-4?1414O 8(x)3x -F () --3x+O F1(x) = -4x+5Of '(x) = 4x+4

Answer 1

The given function is:

f(x) = -5x-4

or y = f(x)

and

y = -5x -4

The inverse of a function can be calculated by switching the y-values with the x-values. Therefore,

y = -5x -4 becomes x = -5y -4

x + 4 = -5y

y = (x+4)/ -5

or

f-1(x) = - (x+4)/5