Question

Another one omg this is annoying

Answer 1

Answer:

Correct option: first one

Step-by-step explanation:

The equation f(x) = 5x + 1 is a function, because each value of x gives only one  value of y.

Now let's find the inverse by switching f(x) by x and x by f'(x), then isolating f'(x):

$x = 5f'(x) + 1$

$5f'(x) = x - 1$

$f'(x) = \frac{x - 1}{5}$

The inverse f'(x) is also a function, because each value of x gives only one value of x.

So we have that both the equation and its inverse are function, therefore the correct answer is the first option.